InvokeDscResourceTestResult should have a implict bool operator

[ThomasNieto]

Summary of the new feature / enhancement

I would like InvokeDscResourceTestResult to have an implicit cast operator to bool so that I can use the result in if statements and other places bool is useful.

Proposed technical implementation details (optional)

public static implicit operator bool(InvokeDscResourceTestResult result) => result.InDesiredState;