fix: REST Handler hook compat

feat: Implemented basic logger

feat: Complete rework for v2

fix: Ajax and CLI handler fix

feat: Reimplemented container handling

feat: Architecture rework

BREAKING CHANGE: Breaks the invoker singleton.

fix(deps): Bumped jetpack-constants version

chore(docs): Sorted out the readme

fix: Tweaks and bugfixes

fix: AHM call fix