Add tools/traceconv
Add tools/traceconv

Add a python script that downloads the correct trace_to_text binary
from gcs then delegates to it.

Change-Id: I94ca276407ee4669dc773c4f78ee52dd478bf3ab
google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto