agnosticbin: Manage buffers flow to avoid errors if peers is not linked
agnosticbin: Manage buffers flow to avoid errors if peers is not linked

Change-Id: Ibd98b34ccbc8169e92c75cc4e21acc54d73fded2

Kurento/kms-core,shelsonjava/kms-core,TribeMedia/kms-core,KurentoLegacy/gst-kurento-plugins,Kurento/kms-core,KurentoLegacy/gst-kurento-plugins,shelsonjava/kms-core,TribeMedia/kms-core,Kurento/kms-core,KurentoLegacy/gst-kurento-plugins,TribeMedia/kms-core,shelsonjava/kms-core,Kurento/kms-core,shelsonjava/kms-core,ESTOS/kms-core,ESTOS/kms-core,ESTOS/kms-core,KurentoLegacy/gst-kurento-plugins,ESTOS/kms-core,TribeMedia/kms-core