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://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4766 6f19259b-4bc3-4df7-8a09-765794883524