Add option to enable retransmission for all temporal layers in the constructor for rtp_sender_video.

R=nisse@webrtc.org

Change-Id: I09d03af461d7fbe200098fe91845f7b76fab6c4f

Bug: webrtc:10954
Change-Id: I09d03af461d7fbe200098fe91845f7b76fab6c4f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/150863
Commit-Queue: Andrei Dumitru <andreidumitru@google.com>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29114}

modules/rtp_rtcp/source/rtp_sender_video_unittest.cc

@@ -106,6 +106,7 @@ class TestRtpSenderVideo : public RTPSenderVideo {
                        nullptr,
                        false,
                        false,
+                       false,
                        field_trials) {}
   ~TestRtpSenderVideo() override {}