Fixes build simplify

Remove the runtime depedency on FSharp.Core.dll.  Instead we now statically link it into Vim.Core.dll.  

Dealing with FSharp.Core as a runtime dependency was a real hassle.  It is a strongly named assembly that Visual Studio may or may not ship.  This meant we could never guarantee what FSharp.Core was being loaded and got wedged in some scenarios where VS didn't ship one and wouldn't load ours.  Now it is statically linked and simply not an issue anymore