Upgrade both PACKAGE_VERSION and PLATFORM_VERSION to 0.5 as major function has been...

Upgrade both PACKAGE_VERSION and PLATFORM_VERSION to 0.5 as major function has been implemented including:
1) Verification with EDK style Chipset and Platform modules
2) Verification with EDK II cores + Compatibility Modules + EDK style Chipset and Platform modules.
3) Package level build Verification for these build combinations:
   1) EFI_SPECIFICATION_VERSION=0x00020000 and PI_SPECIFICATION_VERSION=0x00009000
   2) EFI_SPECIFICATION_VERSION=0x00020000 and PI_SPECIFICATION_VERSION=0x00010000
   3) EFI_SPECIFICATION_VERSION=0x0002000A and PI_SPECIFICATION_VERSION=0x00010000

No major incompatible changes. Please check ChangeLog.txt for details.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7128 6f19259b-4bc3-4df7-8a09-765794883524