Migrate PiP logs to UiEvent

Per go/uievent, migrated PiP logs to UiEvent and also in this change
- Deprecates counterpart proto definitions in metrics_constants
- Record PiP logs from SysUI only, deprecates what's used to be in WM

Changes to the actual logging
- No longer logs the actual aspect ratio
- Disables logging the change of aspect ratio since there are flood of
  events can trigger this
- Splits menu visibility log to SHOW_MENU and HIDE_MENU
- Splits removal of PiP to TAP_TO_REMOVE and DRAG_TO_REMOVE
- No longer logs supportsEnterPipOnTaskSwitch
- Adds new RESIZE logging

Bug: 147508020
Test: $ANDROID_HOST_OUT/bin/statsd_testdrive -terse 90
Change-Id: I805d16ae6f30c07270b743f7ae1e66cbbd121131