Add additional java_api_library module to java testing

Module lib surface is comprised of contributions from art, conscrypt,
and i18n api domains. On top of this, the module lib api surface generates an additional stub library containing the contributions of the non-updatable api domains. Adding this additional module to the testing module enables more thorough testing of module lib api scope java_api_library modules.

Test: m
Change-Id: Ia648651fb9e6cba2642de7e8d39047d888bf49ce