Move the MemberInfo-derived Info classes to the shared partition. (dotnet/coreclr#10236)
* Copy over CoreRt prose member by member.
* Transplant the CoreRt version of the files.
This is now just a reordering. Verified
by sorting the old and new versions of the
file and diffin.
* Move to shared partition.
* Looks like the #if FEATURE_COMINTEROP wasn't just for show...
Take EventInfo.cs back to unshared status for now...
Commit migrated from https://github.com/dotnet/coreclr/commit/
c6b82ac3d83ecebc124d6a39065f4e6723aa320b