1. Fix EDKT281 there are too many values in the list of Hob's Guid C Name. only the...

1. Fix EDKT281 there are too many values in the list of Hob's Guid C Name. only the correlative values could be reserved in the list
2. Fix EDKT282 there are too many selected values in the list of Variable Guid C Name of MSA
3. Fix EDKT283 there are too many selected values in the list of SystemTable Guid C Name of MSA
Add rules for get guid when editing event/guid/hob/variable/systemtable
a. Get all guids from current module's dependency packages
b. For each guid, only when it hasn't defined any type or has specific type for current editing item(event/guid/hob/variable/systemtable), it can be added into drop down list.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1622 6f19259b-4bc3-4df7-8a09-765794883524