ported 'weird' test to fs
delete old C# version of the dbTests
rename fsTests to dbTests
delete cs version of tapp
rename fsTapp dir
rm the Task versions of the async stuff in IDatabase
attempt at converting all the write IO to async.  all C# stuff removed from the sln build as part of this change.
Revert "attempt at converting all the write IO to async.  all C# stuff removed from the sln build as part of this change."

This reverts commit 35ed34bd03043ebf0f1fc6c83f6fec7444f13aca.