Hooks are removed from GlobalSlotList within LhWaitForPendingRemovals. For managed, static LocalHook.Release is now public.

Added test unit for testing LhWaitForPendingRemovals.

Closes #18962, #25749, #25704, #23516


git-svn-id: https://easyhook.svn.codeplex.com/svn@75239 142e9c35-602f-4880-9f37-ec48a24daa6a
Fixed Test/EasyHook.Tests/EasyHook.Tests.csproj for other build configurations

git-svn-id: https://easyhook.svn.codeplex.com/svn@75241 142e9c35-602f-4880-9f37-ec48a24daa6a