Moving shared classes to common.pip package 1/N

- PipAppOpsListener is moved to common package and converted to Kotlin
- FloatingContentCoordinator exists in shell.common, move it away from
  Pip1SharedModule to WMShellBaseModule
- There is no need to reference pip.Pip, pip is referenced externally
  via PipTransitionController in DefaultMixedHandler

Bug: 293306185
Test: makepush sysuig
Test: m -j ArcSystemUI
Change-Id: I07325b8937d131fc3f649114fb15149beed4dda8