copy xbsv/cpp files to jni to enable shared instances of xbsv common code

Change-Id: If2f3b5449d3e2a5ecad349201f9a7b29e2b1f4c1
continue even if project is not in a git repo

Change-Id: Ie99c92df01246476b946b3cec7f42c7fbe8cdbce
add parser output dir to sys.path, and move that to scripts/syntax/

Change-Id: I59ae55dc9bd0b86470e698abbf03a98e3e5ac980