Implement a new type of section which reads from logd and dumps proto.

And implement a file section which reads from event-log-tags for
decoding binary logs.

Bug: 70936599
Test: atest incidentd_test && atest incident_helper_test and flush on
device and test log sections and event_log_tag_map
Change-Id: Ib3d35e317f355de69f01ded012482486e9a43da6