kmsbasertpendpoint: Enable/disable insertion of latency metada
kmsbasertpendpoint: Enable/disable insertion of latency metada

Change-Id: I106057211eef237e4cec41e844366e06401e19fe

Kurento/kms-core,ESTOS/kms-core,ESTOS/kms-core,shelsonjava/kms-core,shelsonjava/kms-core,Kurento/kms-core,ESTOS/kms-core,shelsonjava/kms-core,TribeMedia/kms-core,Kurento/kms-core,ESTOS/kms-core,shelsonjava/kms-core,TribeMedia/kms-core,Kurento/kms-core,TribeMedia/kms-core,TribeMedia/kms-core