Add AppFunctionAccessDatabaseHelper

The access histories would be stored in framework as SQLite database.
AppFunctionAccessDatabaseHelper would be the entry point to manage these
histories.

Bug: 427996654
Flag: android.permission.flags.app_function_access_api_enabled
Test: FrameworksAppFunctionsTests
Change-Id: I2f5f25e0486dd51479f456cdfeb99564d4d0ba6e