webrtcbin: Need to be able to figure out h264 profile-level-id compatibility
offer might not be containing exactly identical
profile-level-id to ours and that would result in unexpected answering.
profile-level-id doesn't need to be identical if ours can be covered by offered one.
Perhaps we can move the functionality of https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/blob/master/gst/videoparsers/gsth264parse.c#L1689 to public utility API for reusing any other cases.