Add Stable AIDL version of EVS HAL

This CL add a new set of EVS APIs written in Stable AIDL with an empty
IEvsEnumerator implementation.

Bug: 170401743
Bug: 195672428
Bug: 202031799
Bug: 202669715
Test: m -j
Change-Id: I28ff4391ba51b72299ebfae801d21a8ab0e37917
70 files changed