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/paperwork/paper.dm

@@ -34,6 +34,8 @@
 	var/spam_flag = 0
 	var/age = 0
 	var/last_modified_ckey
+	
+	var/was_maploaded = FALSE // This tracks if the paper was created on mapload.
 
 	var/const/deffont = "Verdana"
 	var/const/signfont = "Times New Roman"
@@ -103,6 +105,12 @@
 
 //lipstick wiping is in code/game/objects/items/weapons/cosmetics.dm!
 
+/obj/item/weapon/paper/Initialize(mapload)
+	. = ..()
+	
+	if(mapload) // Jank, but we do this to prevent maploaded papers from somehow stacking across rounds if re-added to the board by a player.
+		was_maploaded = TRUE
+
 /obj/item/weapon/paper/New(var/newloc, var/text, var/title)
 	..()
 	pixel_y = rand(-8, 8)
@@ -463,6 +471,7 @@
 		//t = html_encode(t)
 		t = replacetext(t, "\n", "<BR>")
 		t = parsepencode(t, i, usr, iscrayon) // Encode everything from pencode to html
+		was_maploaded = FALSE // Set this to FALSE because a user has written on us. This is for persistence purposes.
 
 
 		if(fields > 50)//large amount of fields creates a heavy load on the server, see updateinfolinks() and addtofield()