* Test more if env variants
* The correct negation syntax is !=
* Make the Interpolate function support negated booleans from envs
* Move assert := a.New(t) into t.Run
This uncovered that some of the test premisses was wrong and the
Eval Bool function also had flaws
* Remove a stray logrus import
* Ignore .idea
* Add Env to the RunContext vm so we can Evaluate and Interpolate `env.xx`
* Make EvalBool support expressions more in line with the github runner
* Turns out Boolean(value) is what github is doing after all
* Add test for github context as well
