Persistence Patch

- Fixes Paper and font tags stacking across rounds, as shown in: ![](https://cdn.discordapp.com/attachments/187013248309002240/741937939382141000/164fdd3a37fb22f18dfa9b5c431ffc04.png)

- Fixes Graffiti being persistent for over 50 rounds (10+ days)
- Sets Trash to be persistent for 4 rounds instead of 5
- Fixes Persistence being always-on because of if("persistence_enabled") config.persistence_enabled = 1. As explained: 
> it's on by default, which means config.txt will be read and if it's not there it stays at 1. If it is there,it gets set to 1. There is no way to disable it

- Adds config options to enable/disable **Persistence for Maploaded objects**, as well as a verb to toggle such.
- Adds Persistence to config.

Currently IGNORE_MAPLOAD for Persistance is **Disabled.**
Maploaded objects/dirt/etc will be saved by persistence, preserving current behavior.

code/modules/persistence/datum/datum_filth.dm

@@ -1,7 +1,7 @@
 /datum/persistent/filth
 	name = "filth"
 	tokens_per_line = 5
-	entries_expire_at = 5
+	entries_expire_at = 4 // 4 rounds, 24 hours.
 
 /datum/persistent/filth/LabelTokens(var/list/tokens)
 	var/list/labelled_tokens = ..()

code/modules/persistence/datum/datum_graffiti.dm

@@ -1,7 +1,7 @@
 /datum/persistent/graffiti
 	name = "graffiti"
 	tokens_per_line = 6
-	entries_expire_at = 50
+	entries_expire_at = 4 // This previously was at 50 rounds??? Over 10 days.
 	has_admin_data = TRUE
 
 /datum/persistent/graffiti/LabelTokens(var/list/tokens)

code/modules/persistence/datum/datum_paper.dm

@@ -24,11 +24,13 @@
 	if(requires_noticeboard && LAZYLEN(board.notices) >= board.max_notices)
 		return
 	var/obj/item/weapon/paper/paper = new paper_type(creating)
-	paper.set_content(tokens["message"], tokens["title"])
+	paper.info = tokens["message"]
+	paper.title = tokens["title"])
 	paper.last_modified_ckey = tokens["author"]
 	if(requires_noticeboard)
 		board.add_paper(paper)
-	SSpersistence.track_value(paper, type)
+	if(!paper.was_maploaded) // If we were created/loaded when the map was made, skip us!
+		SSpersistence.track_value(paper, type)
 	return paper
 
 /datum/persistent/paper/GetEntryAge(var/atom/entry)

code/modules/persistence/datum/persistence_datum.dm

@@ -6,8 +6,8 @@
 	var/name
 	var/filename
 	var/tokens_per_line
-	var/entries_expire_at
-	var/entries_decay_at
+	var/entries_expire_at						// Set in rounds, this controls when the item is finally removed permanently regardless if cleaned or not.
+	var/entries_decay_at						// Set in rounds. This controls when item messages start getting scrambled.
 	var/entry_decay_weight = 0.5
 	var/file_entry_split_character = "\t"
 	var/file_entry_substitute_character = " "