Add a benchmark library to support the CTS test.

Bug: 119299842

Test: Covered by the new com.android.nn.benchmark.cts.CtsNNAPIBenchmarkTestCases

Change-Id: I81e26581a55ba8121c92c10ec175b545eac1a224
Merged-In: I81e26581a55ba8121c92c10ec175b545eac1a224
(cherry picked from commit 60636e8b9887b2e4571285e1b67f9cc730be8ab2)
3 files changed