Improved BidrectionalCollection+Looping

Bumped dependencies

Updated KippleCodable with PropertyListDecoder conveniences

Updated README, added .devcontainer.json

Added NUMEROUS tests

Minor tweaks

visionOS not supported

Bumped KippleTools to 0.5.0

Bumped to Swift 5.7

Removed Kipple Bools, added Comparable+Clamped