The input loop reading from stdin did not handle multi-line input correctly
because it was adding a newline character where none was expected.
The fix was to not include the final newline character to accept input,
just like Console.ReadLine or PSReadline would.
This restructuring moves tests to a directory name which matches the module
in which the cmdlet resides which should improve the discoverability of a
specific test.
For tests which are not about cmdlets in a module, new directories have been
created to make those tests easier to find as well
Sergei Vorobev