This patch is going to:

This patch is going to:
1.       Add a checkpoint to check if an UNI file is a valid UTF-16 file
2.       Add a checkpoint to check if a GUID/PPI/PROTOCOL/PCD is in a valid format.
3.       Some other minor changes.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hess Chen <hesheng.chen@intel.com>
Reviewed-by: Yingke Liu <yingke.d.liu@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15886 6f19259b-4bc3-4df7-8a09-765794883524