[Magiclysm] Make Magic Shop NPC no longer guaranteed spawn (#78930)

* Relocate Magic Shop to new City Specials folder, Magic shop can now spawn without the Healer.

* Kick Test

data/mods/Magiclysm/obsolete/camp_placement.json

@@ -4,10 +4,6 @@
     "type": "camp_migration",
     "camp_migrations": { "name": "Forge of Wonders", "overmap_terrain": "forge_3A", "faction": "forge_lords" }
   },
-  {
-    "type": "camp_migration",
-    "camp_migrations": { "name": "Healer's respite", "overmap_terrain": "magic_shop", "faction": "healers_grey" }
-  },
   {
     "type": "camp_migration",
     "camp_migrations": { "name": "Old Wizard", "overmap_terrain": "lake_retreat_z3", "faction": "wizards_ancient" }

data/mods/Magiclysm/worldgen/magic_shop.json → data/mods/Magiclysm/worldgen/city_specials/magic_shop.json

@@ -196,9 +196,15 @@
         "K": { "item": "allclothes", "chance": 20, "repeat": [ 1, 2 ] },
         "B": { "item": "magic_shop_books", "chance": 20, "repeat": [ 1, 2 ] }
       },
-      "place_npcs": [ { "class": "healer_priest", "x": 10, "y": 10 } ]
+      "place_nested": [ { "chunks": [ [ "NPC_healer_priest", 20 ], [ "null", 80 ] ], "x": 10, "y": 10 } ]
     }
   },
+  {
+    "type": "mapgen",
+    "method": "json",
+    "nested_mapgen_id": "NPC_healer_priest",
+    "object": { "mapgensize": [ 1, 1 ], "rows": [ " " ], "place_npcs": [ { "class": "healer_priest", "x": 0, "y": 0 } ] }
+  },
   {
     "type": "mapgen",
     "method": "json",

data/mods/Magiclysm/worldgen/multitile_city_buildings.json

@@ -4,7 +4,7 @@
     "id": "magic_shop",
     "locations": [ "land" ],
     "overmaps": [
-      { "point": [ 0, 0, 0 ], "overmap": "magic_shop_north", "camp": "healers_grey", "camp_name": "Healer's respite" },
+      { "point": [ 0, 0, 0 ], "overmap": "magic_shop_north" },
       { "point": [ 0, 0, 1 ], "overmap": "magic_shop_2ndfloor_north" },
       { "point": [ 0, 0, 2 ], "overmap": "magic_shop_roof_north" }
     ]