Add some protologs for window organizers & shell

- Refactor out base protolog impl so that shell can have it's own
  implementation which takes a different viewer config (from the resources
  directly instead of a separate file in /system/etc)
- Setup the protolog transform for shell classes
- Add some basic protologs for displayarea/task organizer controller
  & shell task org (for now only text logging)

Bug: 161980327
Test: adb shell wm logging enable-text WM_DEBUG_WINDOW_ORGANIZER
Test: adb shell dumpsys activity service SystemUIService WMShell enable-text-logging WM_SHELL_TASK_ORG
Test: atest ProtoLogImplTest \
            ProtoLogViewerConfigReaderTest \
            WmTests:ProtoLogIntegrationTest \
            LogDataTypeTest \
            protologtool-tests
Change-Id: I4c3fd6aaea04987c26ac56e9baf9fc8ab75a3f34
Signed-off-by: Winson Chung <winsonc@google.com>