Added a new parser for timing metrics from logcat

The new parser will be used for analyze logcat to parse timing
related metrics, e.g. can be used for boot time metrics parsing

Test: tools/tradefederation/core/tests/run_tradefed_tests.sh --class com.android.loganalysis.UnitTests
Bug: 133166326

Change-Id: I0a17a813fd0f5b7908279d76c38d4d8e0fbf1e96