Convert RID_CUI_DIALOG_COLORPICKER to .ui

Conflicts:
	extras/source/glade/libreoffice-catalog.xml.in

Change-Id: I161681859c924cc97afa9886b80005e70fa2a87c
Reviewed-on: https://gerrit.libreoffice.org/10210
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>