Code cleanup

Change-Id: Ib452a5cd716ef243e04f498d2fa23d0d389865c0
Get more color attributes for document colors in Writer

Change-Id: I2005b434f20a56417105c7b26ce09155a7023023
Add loading document colors to Calc

Change-Id: I06783b04dbbad2aa690820af1ca2cf05a1004f20