Add libtracing_perfetto for tracing using Perfetto SDK

libtracing_perfetto internally uses the Perfetto SDK or
libcutils based on an aconfig flag.

Test: atest libtracing_perfetto_tests
Bug: 303199244
Ignore-AOSP-First: Internal feature
Change-Id: I9922d11607051ff22777e3df12b8f877a765dfa7