FSharpComposableQuery.Tests
 - Converted the project to a console application so it can be properly
   debugged in Visual Studio
 - Converted QueryTests.fsx to a .fs file and included it in the project
   so it can be integrated with MSTest and the VS debugger. TODO: do this
   for the other tests.
 - Externalized SQL Server connection strings to App.config. Please see
   the included App.config.sample in the project folder for an example.
 - Added SQL scripts to create the tables used for testing.