MPF 0.57.x Migration

What's Changed

• Refactor/mpf 0.57.0 by @unRARed in #11

Full Changelog: v0.1.3...v0.2.0

Added Shooter Lane

Added physical switch to the shooter lane so the game knows the difference between a ball waiting to be plunged and a ball stuck some other ball device (essentially fixes ball search).

Fully Migrated Original Spec

This is more or less the original spec from TAG Tech Bash 17 migrated to MPF 0.50.

All tests passing with this MPF stack:

MPF version v0.50.11
MPF-MC version v0.50.7

Mostly fixes for production

Merge pull request #4 from unRARed/v0.50

fix dev

TAG Tech Bash 2017 Pre-release

Code which was running at TAG Tech Bash 2017.

NWPAS 2017 Pre-release

Code which was running on the machine for the Northwest Pinball & Arcade Show in 2017.