5/ Show Flicker properties on Winscope (WM)

- Use flicker object on the property tree
- Keep `proto` entry on the property tree with the original proto file
- Use `prettyPrint` method on flicker to format output for winscope

Bug: 185516271
Test: build winscope and open WM traces
Change-Id: I1e0410cc201a28d1e1420f354fbe08b5fdbdbcbc
12 files changed
tree: 0fd3df8f6c6d1c3fa02ffd918fe52ada998d1153
  1. build/
  2. docs/
  3. emu_test/
  4. libraries/
  5. scripts/
  6. tests/
  7. utils/
  8. PREUPLOAD.cfg