car livestream (#38193)

* athenad and webrtcd updates

* remove feature stream services from webrtcd split

* stream encoder thread

* reduce diff

* wire webrtc to livestream camera encoder

* request livestream camera switch service

* remove camera list in favour of init camera field

* remove cors

* clean

* remove unused

* remove extra try except

* add back exception trace

* add stream road camera info to stream cameras

* fix

* clean diff

* clean diff

* add testJoystick only on body

* fix camera list

* remove reference to future service

* encode all cameras and swap in video track in webrtc

* clean

* explicitly gate bridge send

* clean leftover

* initial idea

* add a watchdog to kill the process after disconnect or onroad

* start camerad and stream encoderd as well

* add message handler even without bridge

* remove carState when offroad

* transition to onroad works for body, kill for car not working

* turn off stream processes on started car

* cereal messaging sub field allow list, carparamspersistent, ping webrtcd to see when awake

* fix imports

* fix and increase max retries

* reduce max retries, increase timeout

* timeout on wait for connection

* remove cereal sub message and update process config to run on body ignition

* debounce 5s on teardown

* update error messages

* fix tear down crash

* clean

* clean

* fix lint

common/params_keys.h

@@ -58,6 +58,7 @@ inline static std::unordered_map<std::string, ParamKeyAttributes> keys = {
     {"IsDriverViewEnabled", {CLEAR_ON_MANAGER_START, BOOL}},
     {"IsEngaged", {PERSISTENT, BOOL}},
     {"IsLdwEnabled", {PERSISTENT, BOOL}},
+    {"IsLiveStreaming", {CLEAR_ON_MANAGER_START, BOOL}},
     {"IsMetric", {PERSISTENT, BOOL}},
     {"IsOffroad", {CLEAR_ON_MANAGER_START, BOOL}},
     {"IsOnroad", {PERSISTENT, BOOL}},