Fix the following issues:

Fix the following issues:
1. Vfr compiler cannot handle #pragma pack(push, 1) well.
2. VfrCompiler should report error for the unsupported format e.g.option text = STRING_TOKEN(STR_DISABLE), ..., key = 1;
3. VfrCompiler error messages are unclear for referencing undefined Q ID

git-svn-id: https://buildtools.tianocore.org/svn/buildtools/trunk/BaseTools@1024 7335b38e-4728-0410-8992-fb3ffe349368