Dynamic Management of Cameras (#18671)

* Add base class for global config updates

* Add or remove camera states

* Move camera process management to separate thread

* Move camera management fully to separate class

* Cleanup

* Stop camera processes when stop command is sent

* Start processes dynamically when needed

* Adjust

* Leave extra room in tracked object queue for two cameras

* Dynamically set extra config pieces

* Add some TODOs

* Fix type check

* Simplify config updates

* Improve typing

* Correctly handle indexed entries

* Cleanup

* Create out SHM

* Use ZMQ for signaling object detectoin is completed

* Get camera correctly created

* Cleanup for updating the cameras config

* Cleanup

* Don't enable audio if no cameras have audio transcription

* Use exact string so similar camera names don't interfere

* Add ability to update config via json body to config/set endpoint

Additionally, update the config in a single rather than multiple calls for each updated key

* fix autotracking calibration to support new config updater function

---------

Co-authored-by: Josh Hawkins <32435876+hawkeye217@users.noreply.github.com>

frigate/api/defs/request/app_body.py

@@ -1,4 +1,4 @@
-from typing import Optional
+from typing import Any, Dict, Optional
 
 from pydantic import BaseModel
 
@@ -6,6 +6,7 @@ from pydantic import BaseModel
 class AppConfigSetBody(BaseModel):
     requires_restart: int = 1
     update_topic: str | None = None
+    config_data: Optional[Dict[str, Any]] = None
 
 
 class AppPutPasswordBody(BaseModel):