gpg4libre: translatable strings for non-LibO filepickers

just strings, code using them is yet to be implemented

Change-Id: I03b2c44f574b3212b39bf4aabedf01c577f35de9
Reviewed-on: https://gerrit.libreoffice.org/45156Reviewed-by: Siegmund Gorr <siegmund.gorr@cib.de>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

include/fpicker/strings.hrc

@@ -13,6 +13,8 @@
 
 #define STR_SVT_FILEPICKER_AUTO_EXTENSION           NC_("STR_SVT_FILEPICKER_AUTO_EXTENSION", "~Automatic file name extension")
 #define STR_SVT_FILEPICKER_PASSWORD                 NC_("STR_SVT_FILEPICKER_PASSWORD", "Save with pass~word")
+//dear loplugins, please don't remove this constant, it will be used in follow-up commits
+#define STR_SVT_FILEPICKER_GPGENCRYPT               NC_("STR_SVT_FILEPICKER_GPGENCRYPT", "Encrypt with ~GPG key")
 #define STR_SVT_FILEPICKER_FILTER_OPTIONS           NC_("STR_SVT_FILEPICKER_FILTER_OPTIONS", "~Edit filter settings")
 #define STR_SVT_FILEPICKER_READONLY                 NC_("STR_SVT_FILEPICKER_READONLY", "~Read-only")
 #define STR_SVT_FILEPICKER_INSERT_AS_LINK           NC_("STR_SVT_FILEPICKER_INSERT_AS_LINK", "~Link")

vcl/inc/strings.hrc

@@ -92,6 +92,8 @@
 
 #define STR_FPICKER_AUTO_EXTENSION                   NC_("STR_FPICKER_AUTO_EXTENSION", "~Automatic file name extension")
 #define STR_FPICKER_PASSWORD                         NC_("STR_FPICKER_PASSWORD", "Save with pass~word")
+// dear loplugins, please don't remove this constant, it will be used in follow-up commits
+#define STR_FPICKER_GPGENCRYPT                       NC_("STR_FPICKER_GPGENCRYPT", "Encrypt with ~GPG key")
 #define STR_FPICKER_FILTER_OPTIONS                   NC_("STR_FPICKER_FILTER_OPTIONS", "~Edit filter settings")
 #define STR_FPICKER_READONLY                         NC_("STR_FPICKER_READONLY", "~Read-only")
 #define STR_FPICKER_INSERT_AS_LINK                   NC_("STR_FPICKER_INSERT_AS_LINK", "Insert as ~Link")