Add am dumpbitmaps to dump bitmap information/content

This change add `am dumpbitmaps` command to:

* list bitmaps with verbose information of specified process
  (or all processes)

* identify duplicated bitmaps originated from the same source

* compress and archive contents of listed bitmaps into a zip

Bug: 369619160
Flag: com.android.server.am.dump_bitmaps
Test: `adb shell am dumpbitmaps` && manual testing

Change-Id: I05923be3290068e8b78a3de1e0e6a893dc724587