gstsctpclientsink: Add pad template
gstsctpclientsink: Add pad template

Change-Id: If2612fb9ce44bb86527303bb7b76a7394aca9dfb

TribeMedia/kms-elements,TribeMedia/kms-elements,TribeMedia/kms-elements,shelsonjava/kms-elements,Kurento/kms-elements,Kurento/kms-elements,Kurento/kms-elements,shelsonjava/kms-elements,shelsonjava/kms-elements