New palette based on https://community.kde.org/KDE_Visual_Design_Group/HIG/Color
with some newly introduced color names

Change-Id: I48afbfd0bfa449dba5d3c59fd880d0657130cc00
Reviewed-on: https://gerrit.libreoffice.org/31012Reviewed-by: jan iversen <jani@documentfoundation.org>
Tested-by: jan iversen <jani@documentfoundation.org>