btaa: new include files in bt stack for BTAA interface

Add new includes files for JNI and btif interfaces development of
activity attribution (BTAA). This change only defines the skeleton of
BTAA interface and its callback structures, more implementation will
follow.

Tag: #feature
Bug: 172501038
Test: m
Change-Id: I1ae48561ec6ce91ed5df1aba6a8d72fe737a7ef0