Reset Mock

• Update to Swift 5
• weak modifiers on example protocols removed. Still supported in mock generation, but preparing for dropping support with the deprecation of weak modifiers in protocols
• New mock function parrotResetMock() - this will completely reset the stub on a mock. Connivence for reseting call counts and called with when initializers call mock functions

Parrot Initial Release

Merge pull request #8 from MonsantoCo/protocol-composition-7

allows internal modifier on protocols, supports protocol composition,…