Orchestrator can build end to end.

This reduces the scope of the demo to just building and installing
a single .so, but it makes the demo actually build that single .so.

Next up, writing some unit tests and fleshing out functionality.

Test: see the README
Change-Id: I560904b786fbf69d3a83dbb08d496dba5a3192ca

orchestrator/inner_build/common.py

@@ -40,6 +40,10 @@ def _parse_arguments(argv):
     export_parser = subparsers.add_parser("export_api_contributions",
             help="export the API contributions of this inner tree")
 
+    # create the parser for the "b" command
+    export_parser = subparsers.add_parser("analyze",
+            help="main build analysis for this inner tree")
+
     # Parse the arguments
     return parser.parse_args(argv)