Assert no repair after stop 

Update module github.com/pion/sctp to v1.9.0 Generated by renovateBot

Option to check for fingerprint in DTLS handshake 

Option to ignore rid pause in `a=simulcast:recv` Before this change, if the SDP offer has paused rids, SDP answer echoed it back. That causes issues where enabling/disabling of layers is signalled via the signalling channel. The following scenario breaks 1. PeerB signals PeerA to disable all simulcast layers. 2. PeerA sends an SDP offer with RIDs disabled. a. NOTE: A renegotiation is not needed, but happens for a different reason. 3. PeerB signals again to PeerA to re-enable layers. 4. PeerB sends answer for the offer in Step 2 with paused rids. 5. PeerA keeps layers paused. Adding a setting engine option to not change existing behaviour. Pause state of a rid will be ignored if setting is enabled.

Handle nil stats getter in collect stats It is possible to call GetStats() after the peer connection is closed. The statsGetter gets cleared when peer connection is closed. That is causing a panic when RtpReceiver.collectStats runs.

Add interface for getting media-playout stats 

Do not create receiver for ealy media in offerer For offerer, if the remote side sends early media before the remote description (answer) is received, the undeclared SSRC processor can create a receiver and that receiver could be left dangling as transceiver `mid` is not updated from remote description answer. Still leaving the simulcast probe path and only avoiding creating a receiver for non-simulcast path. Add a flag `handleUndeclaredSSRCWithoutAnswer` to control handling of early media without SDP answer for non-simulcast tracks. The default behaviour is to not process early media without SDP answer.

 Update module github.com/pion/ice/v2 to v2.3.38 

H265 reader & writer H265 raeder & writer

Updated Test_TrackLocalStatic_Padding test Use custom packetizer in Test_TrackLocalStatic_Padding to verify that padding added in different ways works.