Zombie villager textures (#18)

This PR:

    Implements zombie villager biomes and professions
    Utilizes the minecraft:zombie_villager_v2 entity

Main Geyser will need to be updated to send profession data for zombie villagers. Users without optional pack will still be able to take advantage of biome specific zombie villager textures with such an update.

Co-authored-by: Camotoy <20743703+Camotoy@users.noreply.github.com>

render_controllers/zombie_villager_v2.render_controllers.json

@@ -0,0 +1,45 @@
+{
+  "format_version": "1.8.0",
+  "render_controllers": {
+    "controller.render.zombie_villager_v2_masked": {
+      "arrays": {
+        "textures": {
+          "Array.biomes": [
+            "Texture.plains",
+            "Texture.desert",
+            "Texture.jungle",
+            "Texture.savanna",
+            "Texture.snow",
+            "Texture.swamp",
+            "Texture.taiga"
+          ],
+          "Array.professions": [
+            "Texture.unskilled",
+            "Texture.farmer",
+            "Texture.fisherman",
+            "Texture.shepherd",
+            "Texture.fletcher",
+            "Texture.librarian",
+            "Texture.cartographer",
+            "Texture.cleric",
+            "Texture.armorer",
+            "Texture.weapon_smith",
+            "Texture.tool_smith",
+            "Texture.butcher",
+            "Texture.leatherworker",
+            "Texture.stonemason",
+            "Texture.nitwit"
+          ]
+        }
+      },
+      "geometry": "Geometry.default",
+      "materials": [
+        { "*": "query.is_baby ? Material.default : Material.masked" }
+      ],
+      "textures": [
+        "Array.biomes[q.mark_variant]",
+        "Array.professions[v.profession_index]"
+      ]
+    }
+  }
+}