Move video video receiver transformable frame to modules/rtc_rtcp/source

Step 1 of combining the sender and receiver types

Also moved the RtpFrameObject to rtp_rtcp/source, as it's heavily used
by the transformable receiver frame, I couldn't work out a better way
of managing the dependencies, and everything else seemed to work fine.

Bug: chromium:1412687
Change-Id: I55e816a0d7aa2962560ff9ebaf30ad63ab0b9810
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/291710
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Tony Herre <herre@google.com>
Cr-Commit-Position: refs/heads/main@{#39255}

video/rtp_video_stream_receiver2.cc

diff --git a/video/rtp_video_stream_receiver2.cc b/video/rtp_video_stream_receiver2.cc
index 3e305a5..d7a7895 100644
--- a/video/rtp_video_stream_receiver2.cc
+++ b/video/rtp_video_stream_receiver2.cc
@@ -26,6 +26,7 @@
 #include "modules/rtp_rtcp/include/receive_statistics.h"
 #include "modules/rtp_rtcp/include/rtp_cvo.h"
 #include "modules/rtp_rtcp/source/create_video_rtp_depacketizer.h"
+#include "modules/rtp_rtcp/source/frame_object.h"
 #include "modules/rtp_rtcp/source/rtp_dependency_descriptor_extension.h"
 #include "modules/rtp_rtcp/source/rtp_format.h"
 #include "modules/rtp_rtcp/source/rtp_generic_frame_descriptor.h"
@@ -36,7 +37,6 @@
 #include "modules/rtp_rtcp/source/ulpfec_receiver.h"
 #include "modules/rtp_rtcp/source/video_rtp_depacketizer.h"
 #include "modules/rtp_rtcp/source/video_rtp_depacketizer_raw.h"
-#include "modules/video_coding/frame_object.h"
 #include "modules/video_coding/h264_sprop_parameter_sets.h"
 #include "modules/video_coding/h264_sps_pps_tracker.h"
 #include "modules/video_coding/nack_requester.h"