Forge integration

[donopj2]

A few basic utility functions that get us started with Forge integration. I'd appreciate a bit of advice about how we expect to package and reference Forge.exe in our build as I'm a bit unsure of best practices @tlycken @forki?

I've also switched us over to Expecto, which requires a simple run of the test project executable. This has broken dotnet test though, any thoughts on how to fix @tlycken?

Also just something I was thinking about while looking through the Forge docs. As far as I can tell it provides no ability to bulk reorder files in a project. Just move up and move down commands or remove and add, which require separate individual calls. Is there a concern that this will be slow for larger projects?

[donopj2]

I'm closing this PR because I don't think this approach is ideal any longer. After playing around with this a good bit more my feeling is it will be simpler and faster to take the original approach of parsing the project file xml and making the ordering adjustment ourselves. If someone feels differently please let me know.