Add regex metric test

Test: m tradefed-all libcore-memory-metrics-tests LibcoreHeapDumper ahat
Test: tradefed.sh run commandAndExit template/local_min --template:map test=libcore-memory-metrics-tests
Bug: 145514052
Change-Id: Ib7d53620d5d741c817429afa02312d2e14fd09b2
2 files changed