New Features -

1. Multiple Palettes in color tab.
2. Remember the selected palette.
3. Recent colors.
4. Custom colors.

Change-Id: I36a438a0c282059ddcbda35f934fcd90337fd451
Reviewed-on: https://gerrit.libreoffice.org/26868Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Yousuf Philips <philipz85@hotmail.com>
Tested-by: Yousuf Philips <philipz85@hotmail.com>
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>