Persistence code refactoring (#22044)

# Summary

This PR refactores code and structure of the current persistence
subsystem, in preparation for Persistency: Circles, Squares and
Triangles.

This should not contain any user facing changes.

~~This PR is based of branch #21925 and **needs** to be merged in order.
The files changed display will be meaningless until then.~~ *Done.*

## Changes

- Split subsystem in partial files.
- Refactored proc names, added "persistentObject" format for current
code.
- Renamed SQL table.
- Refactored logging and call hiearachy.
- Fix CI labeler adding DB label on non-SQL files.

code/controllers/subsystems/persistence/persistence_objects_public.dm

@@ -0,0 +1,28 @@
+/* This partial file contains all procs that are meant for public access. */
+/* Other procs should be made private. */
+
+/**
+ * Adds the given object to the list of tracked objects. At shutdown the tracked object will be either created or updated in the database.
+ * The ckey is an optional argument and is used for tracking user generated content by adding an author to the persistent data.
+ */
+/datum/controller/subsystem/persistence/proc/objectsRegisterTrack(obj/new_track, ckey)
+	if(new_track.persistent_objects_track_active) // Prevent multiple registers per object and removes the need to check the register if it's already in there
+		return
+
+	var/turf/T = get_turf(new_track)
+	if(!T || !is_station_level(T.z)) // The persistence system only supports objects from the main map levels for multiple reasons, e.g. Z level value, mapping support
+		return
+
+	new_track.persistent_objects_track_active = TRUE
+	new_track.persistent_objects_author_ckey = ckey
+	GLOB.persistence_object_track_register += new_track
+
+/**
+ * Removes the given object from the list of tracked objects. At shutdown the tracked object will be remove from the database.
+ */
+/datum/controller/subsystem/persistence/proc/objectsDeregisterTrack(obj/old_track)
+	if(!old_track.persistent_objects_track_active) // Prevent multiple deregisters per object and removes the need to check the register if it's not in there
+		return
+
+	old_track.persistent_objects_track_active = FALSE
+	GLOB.persistence_object_track_register -= old_track