* Disable most apphelp:env and some apphelp:db tests on x64 due to structure differences breaking these tests.
* Add new tag lists for Windows 8.1 and Windows 10 in apphelp:apphelp test.
* Make a few changes to accept either Windows 10 or Windows 8.1 and older behavior in apphelp:apphelp test.
* Create new shimdata structures for Windows 8 and Windows Vista.
* Add attribute size definitions for Vista, 8.1, and 10.
* Create new shim data validation functions for Vista and 8.1.
* Use local time instead of UTC time for shim db version. This fixes test failures when the day in local time and the day in UTC are different.
