This change includes the new System Service that allows the supervised binding to the TextToSpeech service provider.
It proxies the binding process from the client instead of the direct client -> texttospeech connection.
Bug: 178112052
Test: atest CtsSpeechTestCases
Test: forest apct/device_boot_health_check
Change-Id: I0709e71460fa01ab025c92753a20bce38f562845