Configure generalized developer GitSetup scripts

Add Scripts/GitSetup/config to configure the generalized scripts for
VIMM.  Add Scripts/GitSetup/SetupGitAliases.sh to configure Git
aliases.  Add Scripts/SetupForDevelopment.sh to run the setup scripts.

Change-Id: I201ce701782f3b8b20c72e1db60e87515ac6d708