Add prebuilt_apis module

prebuilt_apis is a meta-module that creates filegroup modules for
each api txt file found. These filegroup modules are used in
java_sdk_library to check the current API isn't breaking the latest
released API.

API txt files for com.android.nfc_extras are added as it is the first
java_sdk_library. The contents are empty as they didn't exist before API
level 28.

Bug: 77575606
Test: m -j
Test: m checkapi
Test: m update-api
Change-Id: Ifb4fa5989e81bc3db1f2ec1988ec5088620a5ea0
7 files changed