Changes to update a call

added the new optional request property agent_update

added the new optional request property boostAudioSignal

added the new optional request property dub

added the new optional request property media_path

added the new optional request property noise_isolation_level

added the new optional request property noise_isolation_model

added the new optional request property noise_isolation_status

added the new optional request property noise_isolation_vendor

added the new optional request property stream_status

added the new optional request property tag

added the new optional request property record/silence

added the new optional request property record/type

added the new optional request property dtmf

endpoint added