Added performance tests for SQLiteCursor iteration

Tests forward/backfards iteration when dataset exceeds default
window size.

Test: atest frameworks/base/apct-tests/perftests/core/src/android/database/SQLiteDatabasePerfTest.java
Bug: 37095915
Bug: 64262688
Change-Id: Icc4e4864de0d2c510f7f3da55a6ebf526d5a4506