add basic c# support

checks for a 'unit tests' folder
updated requirements for c# projects
add dependancy for npm-watch

`npm run watch` will re-run the tests for a change in source or test
files
Merge branch 'c#-support' of https://github.com/M-Zuber/forkability into zuber-csharp
Merge branch @M-Zuber's PR :tada:
Shrinkwrap
0.11 Basic C# Support