Squashed 'external/toxcore/c-toxcore/' changes from e58eb27a8..1828c5356

1828c5356 fix(toxav): remove extra copy of video frame on encode
b66b8ded6 refactor: improve group stability, moderation determinism, and DHT dual-stack handling
4fbd7c10a fix(toxav): fix heap buffer overflow in RTP video packet handling
809fe8c78 refactor(tox): make the `#define` consts int literals.
50d242a37 refactor(toxav): improve MSI safety and testability
da1c13a2f fix(toxav): harden video processing and fix large frame handling
472825288 fix(toxav): fix multiple logic bugs in audio module
dc963d9a9 fix(toxav): fix multiple bugs in bandwidth controller and add tests
3bf5778ef refactor(toxav): split out RTP module and add exhaustive unit tests
b79b7d436 fix(autotools): add tox_log_level.h to public headers list
ea2e34ff2 chore: Disable cirrus. We're out of quota again.
b449ea2ed chore(ci): update azure runner image to windows-2022 windows-2019 is EOL
e115b136d refactor: Make add_to_list non-recursive.
REVERT: e58eb27a8 fix(toxav): remove extra copy of video frame on encode Tested and works, but there might be alignment issues and other stuff.

git-subtree-dir: external/toxcore/c-toxcore
git-subtree-split: 1828c5356b2daf1d5f680854e776d74b181d268c

CMakeLists.txt

@@ -418,7 +418,6 @@ if(BUILD_TOXAV)
     toxav/rtp.h
     toxav/toxav.c
     toxav/toxav.h
-    toxav/toxav_hacks.h
     toxav/toxav_old.c
     toxav/video.c
     toxav/video.h)
@@ -578,8 +577,15 @@ endfunction()
 # The actual unit tests follow.
 #
 if(UNITTEST AND TARGET GTest::gtest AND TARGET GTest::gmock)
-  unit_test(toxav ring_buffer)
-  unit_test(toxav rtp)
+  if(BUILD_TOXAV)
+    unit_test(toxav audio)
+    unit_test(toxav bwcontroller)
+    unit_test(toxav msi)
+    unit_test(toxav ring_buffer)
+    unit_test(toxav rtp)
+    unit_test(toxav video)
+  endif()
+
   unit_test(toxcore DHT)
   unit_test(toxcore bin_pack)
   unit_test(toxcore crypto_core)