1. Update the implementation of HII ConfigRouting Protocol in HiiDataBase module...

1. Update the implementation of HII ConfigRouting Protocol in HiiDataBase module to follow new ECRs.
  1) ConfigRouting Protocol ExtractConfig interface must return the default values built in IFR that were not returned by ConfigAccess.ExtractConfig.
  2) The parameters of ConfigRouting Protocol interfaces are clarified to the specific configuration string syntax.
2. Implement the last two HiiLib interfaces: HiiSetToDefaults and HiiValidateSettings.
3. Update DriverSample driver to use these two APIs.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8313 6f19259b-4bc3-4df7-8a09-765794883524