Improve IMF visibility log (4/N)

Add event logs for remote IME animation flow
to debug IME flicker or visibility issues on
split-screen, bubbles cases.

Those logs includes position, alpha, insets,
surface control, etc. Also using the tag of
ImeTracker.Token for identification.

The log is only enabled for debug builds.

Bug: 239501597
Test: presubmit
Change-Id: Iad4b822e24313d6cce21c4e457dd14998dc6b06e
2 files changed