fdo#69210: sysui: add some AppStream AppData files

Change-Id: I5c4af1c36290f0e1b3815058bd68b952f6005f4a

sysui/desktop/appstream-appdata/libreoffice-base.appdata.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<application>
+<id type="desktop">libreoffice-base.desktop</id>
+<licence>CC0</licence>
+<description>
+<p>
+Base is a powerful database manager, part of the LibreOffice productivity suite.
+It allows you to store, manage and maintain different collections of data.
+Base makes it easy to keep track of your finances, customers, invoices, or even
+just the contacts in your address book!
+</p>
+<p>
+For users that are new to databases, Base offeres helpful wizards to create tables,
+queries, forms and reports.
+It's a solution for people requiring an easy-to-understand, simple-to-use system.
+</p>
+<p>
+For power users and enterprise requirements, it provides native-support drivers
+for some of the most-widely employed multi-user database engines:
+MySQL, Adabas D, MS Access and PostgreSQL.
+In addition, the built-in support for JDBC- and ODBC-standard drivers allows you
+to connect to virtually any other existing database engine as well.
+</p>
+</description>
+<url type="homepage">http://www.libreoffice.org/features/base/</url>
+<screenshots>
+<screenshot type="default">http://www.libreoffice.org/assets/Uploads/EN-Project_images/800x600/Base/Screenshot-87.png</screenshot>
+</screenshots>
+<updatecontact>libreoffice_at_lists.freedesktop.org</updatecontact>
+</application>

sysui/desktop/appstream-appdata/libreoffice-calc.appdata.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<application>
+<id type="desktop">libreoffice-calc.desktop</id>
+<licence>CC0</licence>
+<description>
+<p>
+Calc is a powerful and extensible spreadsheet program, part of the LibreOffice
+productivity suite.
+Newcomers find it intuitive and easy to learn.
+Professional data miners and number crunchers will appreciate the comprehensive
+range of advanced functions.
+</p>
+<p>
+LibreOffice supports opening and saving into a wide variety of formats, so you
+can easily share spreadsheets with users of other popular office suites without
+worrying about compatibility.
+</p>
+</description>
+<url type="homepage">http://www.libreoffice.org/features/calc/</url>
+<screenshots>
+<screenshot type="default">http://en.wikipedia.org/wiki/File:LibreOffice_Calc_4.0.1_screenshot.png </screenshot>
+</screenshots>
+<updatecontact>libreoffice_at_lists.freedesktop.org</updatecontact>
+</application>

sysui/desktop/appstream-appdata/libreoffice-draw.appdata.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<application>
+<id type="desktop">libreoffice-draw.desktop</id>
+<licence>CC0</licence>
+<description>
+<p>
+LibreOffice Draw is an easy-to-use graphics editor, which empowers you to create
+anything from quick sketches to complex diagrams.
+It provides a powerful set of tools and shapes for producing technical drawings,
+charts, and much else.
+</p>
+<p>
+Draw allows you to create, manipulate and arrange different objects - it offers
+a number of tools for editing, resizing, rotating, grouping and styling them!
+It also provides smart connectors that make it easy for you to build charts and
+diagrams, and make beautiful drawings composed of different objects.
+</p>
+<p>
+LibreOffice supports opening and saving into a wide variety of formats, so you
+can easily share drawings with users of other popular office suites without
+worrying about compatibility.
+</p>
+</description>
+<url type="homepage">http://www.libreoffice.org/features/draw/</url>
+<screenshots>
+<screenshot type="default">http://www.libreoffice.org/assets/Uploads/EN-Project_images/800x600/Draw/Screenshot-68.png</screenshot>
+</screenshots>
+<updatecontact>libreoffice_at_lists.freedesktop.org</updatecontact>
+</application>

sysui/desktop/appstream-appdata/libreoffice-impress.appdata.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<application>
+<id type="desktop">libreoffice-impress.desktop</id>
+<licence>CC0</licence>
+<description>
+<p>
+Impress is a presentation program and part of the LibreOffice productivity suite.
+Impress is the fastest and easiest way to create effective multimedia presentations.
+Stunning animation and sensational special effects help you convince your audience.
+Create presentations that look even more professional than the standard
+presentations you commonly see at work. Get your colleagues’ and bosses’ attention
+by creating something a little bit different.
+</p>
+<p>
+LibreOffice supports opening and saving into a wide variety of formats, so you
+can easily share presentations with users of other popular office suites without
+worrying about compatibility.
+</p>
+</description>
+<url type="homepage">http://www.libreoffice.org/features/impress/</url>
+<screenshots>
+<screenshot type="default">http://www.libreoffice.org/assets/Uploads/EN-Project_images/800x600/Impress/Screenshot-46.png</screenshot>
+</screenshots>
+<updatecontact>libreoffice_at_lists.freedesktop.org</updatecontact>
+</application>

sysui/desktop/appstream-appdata/libreoffice-writer.appdata.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<application>
+<id type="desktop">libreoffice-writer.desktop</id>
+<licence>CC0</licence>
+<description>
+<p>
+Writer is the word processor inside LibreOffice productivity suite.
+Use it for everything, from dashing off a quick letter to producing an entire
+book with tables of contents, embedded illustrations, bibliographies and diagrams.
+The while-you-type auto-completion, auto-formatting and automatic spell-checking
+make difficult tasks easy (but are easy to disable if you prefer).
+Writer is powerful enough to tackle desktop publishing tasks such as creating
+multi-column newsletters and brochures. The only limit is your imagination.
+</p>
+<p>
+Based on the what-you-see-is-what-you-get principle, Writer allows you to apply
+various styles and formatting effects to your document and view the results
+immediately.
+</p>
+<p>
+LibreOffice supports opening and saving into a wide variety of formats, so you
+can easily share documents with users of other popular office suites without
+worrying about compatibility.
+</p>
+</description>
+<url type="homepage">http://www.libreoffice.org/features/writer/</url>
+<screenshots>
+<screenshot type="default">http://www.libreoffice.org/assets/Uploads/EN-Project_images/800x600/Writer/Screenshot-99.png</screenshot>
+</screenshots>
+<updatecontact>libreoffice_at_lists.freedesktop.org</updatecontact>
+</application>