Moved endercon ruins

Moved endercon ruins from the main island to the end hallows biome

data/endercon/worldgen/structure/end_ruins.json

@@ -0,0 +1,15 @@
+
+{
+	"type": "minecraft:jigsaw",
+	"biomes": "endercon:end_hallows",
+	"step": "raw_generation",
+	"spawn_overrides": {},
+	"terrain_adaptation": "none",
+	"start_pool": "endercon:end_ruins/start",
+	"size": 2,
+	"start_height": {
+		"absolute": 30
+	},
+	"max_distance_from_center": 16,
+	"use_expansion_hack": false
+}

data/minecraft/worldgen/biome/the_end.json

@@ -0,0 +1,57 @@
+{
+  "carvers": {},
+  "downfall": 0.0,
+  "effects": {
+    "fog_color": 10518688,
+    "mood_sound": {
+      "block_search_extent": 8,
+      "offset": 2.0,
+      "sound": "minecraft:ambient.cave",
+      "tick_delay": 6000
+    },
+    "sky_color": 0,
+    "water_color": 4159204,
+    "water_fog_color": 329011,
+    "particle": {
+      "options": {
+        "type": "minecraft:white_ash"
+      },
+      "probability": 0.01
+    },
+    "ambient_sound": "minecraft:ambient.warped_forest.loop"
+  },
+  "features": [
+    [],
+    [],
+    [],
+    [],
+    [
+      "minecraft:end_spike"
+    ],
+    [],
+    [],
+    [],
+    [],
+    []
+  ],
+  "has_precipitation": false,
+  "spawn_costs": {},
+  "spawners": {
+    "ambient": [],
+    "axolotls": [],
+    "creature": [],
+    "misc": [],
+    "monster": [
+      {
+        "type": "minecraft:enderman",
+        "maxCount": 4,
+        "minCount": 4,
+        "weight": 10
+      }
+    ],
+    "underground_water_creature": [],
+    "water_ambient": [],
+    "water_creature": []
+  },
+  "temperature": 0.5
+}