ASACORE-1177, ASACORE-1178 Add the setAnnounceFlag method

BusAttachment.setAnnounceFlag method has been added to the Java
language bindings.  This makes it possible to announce an interface
that does not have the announce annotation or prevent an interface
that does have the announce annotation from being announced.

Change-Id: I61463fa2368c52e6286adedb1a34425e0f34ae45
Signed-off-by: George Nash <georgen@qce.qualcomm.com>
Merge "ASACORE-1177, ASACORE-1178 Add the setAnnounceFlag method" into RB14.12