feat(addons): hemp plant, wild cherry tree, naturalist-lite

New addons:
- hemp-addon: silverlabs:hemp_crop (5 ages, indoor sun-lamp grown vs
  outdoor sky-lit), shears harvest, cauldron tincture, brownie food,
  bonemeal, sun-lamp redstone-lit block (light_dampening: 0 so crops
  beneath stay lit), grass-seed bootstrap, wandering-trader buyback,
  pillager raid stealing.
- trees-features-addon: ods_orch wild cherry tree — log/leaves/planks/
  stripped/sapling/fruit blocks with seasonal fruit states, structure-
  spawn worldgen.
- naturalist-lite-addon: 13-mob subset of Naturalist (deer, fox, owl,
  skunk, snake, hedgehog, red panda, capybara, elephant, kangaroo,
  moose, tiger, firefly), trimmed for Switch joinability.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

naturalist-lite-addon/naturalist_lite_RP/models/blocks/snake_egg.geo.json

@@ -0,0 +1,24 @@
+{
+  "format_version": "1.16.0",
+  "minecraft:geometry": [
+    {
+      "description": {
+        "identifier": "geometry.silverlabs_nat.snake_egg",
+        "texture_width": 16,
+        "texture_height": 16,
+        "visible_bounds_width": 2,
+        "visible_bounds_height": 1.5,
+        "visible_bounds_offset": [0, 0.25, 0]
+      },
+      "bones": [
+        {
+          "name": "root",
+          "pivot": [0, 0, 0],
+          "cubes": [
+            { "origin": [-1, 0, -1], "size": [2, 3, 2], "uv": [0, 0] }
+          ]
+        }
+      ]
+    }
+  ]
+}