Improve compaction debugging with extra adb command to force compaction

This CL adds am compact command that allows forcing compactions
this is specially useful for debugging compaction flows as well
and it also allows for instrumentation to manually trigger compactions
if needed and it also reduces some technical debt to allow
forcing compaction code to be manageable.

Bug: 226463719
Test: adb shell am compact <process_name> <uid> some|full

Change-Id: I67af76a212611260bb226e74e48eb7f495341f12