Add request-bug and request-default fields for CharisSIL font.

Added the git and gerrit commit URLs for the addition of the CharisSIL
font and it being set as the default font for Min Dong Chinese (cdo).
The request-default field is commented as the font has been temporarily
disabled for cdo due to performance issues.

Change-Id: I4f2504284d92ca7722f10be667ab7dd3a620f313
Merge "Add request-bug and request-default fields for CharisSIL font."