Added a tiny map for testing changes (#17704)

* Added a tiny map for testing changes

* I forgot to commit this

* Addressed review

* Expanded to 255x255 for consistency

* Update config/example/config.toml

Co-authored-by: AffectedArc07 <25063394+AffectedArc07@users.noreply.github.com>

Co-authored-by: AffectedArc07 <25063394+AffectedArc07@users.noreply.github.com>

code/controllers/configuration/sections/system_configuration.dm

@@ -26,6 +26,8 @@
 	var/internal_ip = "127.0.0.1"
 	/// Are we using an external handler for TOS
 	var/external_tos_handler = FALSE
+	/// Whether to load test_tiny instead of the normal map
+	var/load_test_map = FALSE
 
 /datum/configuration_section/system_configuration/load_data(list/data)
 	// Use the load wrappers here. That way the default isnt made 'null' if you comment out the config line
@@ -44,3 +46,5 @@
 
 	CONFIG_LOAD_STR(instance_id, data["instance_id"])
 	CONFIG_LOAD_STR(internal_ip, data["internal_ip"])
+
+	CONFIG_LOAD_BOOL(load_test_map, data["load_test_map"])

code/controllers/subsystem/mapping.dm

@@ -126,6 +126,9 @@ SUBSYSTEM_DEF(mapping)
 
 // Loads in the station
 /datum/controller/subsystem/mapping/proc/loadStation()
+	if(GLOB.configuration.system.load_test_map)
+		log_startup_progress("Loading test map, overridden by configuration.")
+		map_datum = new /datum/map/test_tiny
 	ASSERT(map_datum.map_path)
 	if(!fexists(map_datum.map_path))
 		// Make a VERY OBVIOUS error