Implement didNotReceive and bug fixes - #78

• Fixes Working use case of didNotReceive? #72
• Fixes an issue where .received(0) of a non mocked method / property of a Substituted class would throw an error complaining about the method / property not being mocked.
• Implements didNotReceive
• Fixes also a bug that prevented an assertion to be run when having the following setup:

const calculator = Substitute.for<Calculator>();
calculator.mode = true;
void calculator.mode;
calculator.received(1).mode = true;

The issue was that Context.state was being overriden from SetPropertyState to a GetPropertyState when calling void calculator.mode. So when doing the evaluation calculator.received(1).mode = true Context.set was calling the GetPropertyState.set method, instead of the expected SetPropertyState.set. Probably the same issue happens for the reverse (first performing a get, then a set).

I updated AVA to latest, and ran npm audit fix. Had to fix a few tests because of the AVA upgrade