Display submit type in the change info block

This is a preparation for a Prolog based submit type rule which will
compute submit type for each change. In this first step we simply
return the project-wide default submit type for each change.

Change-Id: I38745e544b215197074ce1fb8d6b106f3c1c1e56
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>
11 files changed