Adds Random Notes (#5644)

Adds SSDocs, which manages randomly spawned documents.
    These documents can be specified in a json file or in a database.
    Adds /obj/random/document and adds /obj/random/document to the loot pool of /obj/random/loot.

Actually adding the notes to spawn is up to loredevs. If there are no notes to choose from, /obj/random/document will leave a blank sheet.

The notes can have HTML in them, meaning custom CSS and images. We're giving the loredevs a good bit of responsibility here.

code/modules/modular_computers/file_system/programs/system/file_browser.dm

@@ -126,7 +126,7 @@
 		if(!computer.nano_printer)
 			error = "Missing Hardware: Your computer does not have required hardware to complete this operation."
 			return 1
-		if(!computer.nano_printer.print_text(pencode2html(F.stored_data)))
+		if(!computer.nano_printer.print_text(F.stored_data))
 			error = "Hardware error: Printer was unable to print the file. It may be out of paper."
 			return 1
 	if(href_list["PRG_copytousb"])

code/modules/modular_computers/hardware/hard_drive.dm

@@ -164,6 +164,13 @@
 	stored_files = null
 	return ..()
 
-/obj/item/weapon/computer_hardware/hard_drive/New()
+/obj/item/weapon/computer_hardware/hard_drive/Initialize(mapload)
 	install_default_programs()
-	..()
+	if(mapload && prob(5))
+		var/datum/docs_document/file = SSdocs.pick_document_by_tag(SSDOCS_MEDIUM_FILE)
+		if(!istype(file))
+			log_ss("docs", "pick_document_by_tag returned null file!")
+		else
+			var/datum/computer_file/data/F = SSdocs.create_file(file)
+			store_file(F)
+	. = ..()