ASACORE-1162 Renamed old About sample as legacy samples

The older AboutService is now named AboutService_legacy
The older AboutClient is now names AboutClient_legacy

The older java samples are now named about_server_sample_legacy
and about_client_sample_legacy.

The AboutService, AboutService_legacy, AboutClient, and
AboutClient_legacy code are now installed in cpp/bin/samples

the rename was to help with confusion which samples were which.

Change-Id: Iee707eb1556d7b36fccb8ef8f1ee4a655010601d
Signed-off-by: George Nash <georgen@qce.qualcomm.com>
Merge "ASACORE-1162 Renamed old About sample as legacy samples" into RB14.12