compat: Environmental colored wisteria leaves

- Uses a new per-texture configuration system that allows customizing block states
- This system also allows defining the texture stitching layout, based on the following template:
1 2 3
4 5 6
7 8 9

input/assets/environmental/textures/block/blue_wisteria_leaves.betterleaves.json

@@ -0,0 +1,5 @@
+{
+    "blockStateData": {
+        "state": "half=bottom"
+    }
+}

input/assets/environmental/textures/block/blue_wisteria_leaves_top.betterleaves.json

@@ -0,0 +1,10 @@
+{   
+    "blockStateData": {
+        "block": "environmental:blue_wisteria_leaves",
+        "state": "half=top"
+    },
+    "textureStitching": {
+        "1-3": "environmental:block/wisteria_leaves",
+        "7-9": "environmental:block/blue_wisteria_leaves"
+    }
+}

input/assets/environmental/textures/block/pink_wisteria_leaves.betterleaves.json

@@ -0,0 +1,5 @@
+{
+    "blockStateData": {
+        "state": "half=bottom"
+    }
+}

input/assets/environmental/textures/block/pink_wisteria_leaves_top.betterleaves.json

@@ -0,0 +1,10 @@
+{   
+    "blockStateData": {
+        "block": "environmental:pink_wisteria_leaves",
+        "state": "half=top"
+    },
+    "textureStitching": {
+        "1-3": "environmental:block/wisteria_leaves",
+        "7-9": "environmental:block/pink_wisteria_leaves"
+    }
+}

input/assets/environmental/textures/block/purple_wisteria_leaves.betterleaves.json

@@ -0,0 +1,5 @@
+{
+    "blockStateData": {
+        "state": "half=bottom"
+    }
+}

input/assets/environmental/textures/block/purple_wisteria_leaves_top.betterleaves.json

@@ -0,0 +1,10 @@
+{   
+    "blockStateData": {
+        "block": "environmental:purple_wisteria_leaves",
+        "state": "half=top"
+    },
+    "textureStitching": {
+        "1-3": "environmental:block/wisteria_leaves",
+        "7-9": "environmental:block/purple_wisteria_leaves"
+    }
+}

input/assets/environmental/textures/block/white_wisteria_leaves.betterleaves.json

@@ -0,0 +1,5 @@
+{
+    "blockStateData": {
+        "state": "half=bottom"
+    }
+}

input/assets/environmental/textures/block/white_wisteria_leaves_top.betterleaves.json

@@ -0,0 +1,10 @@
+{   
+    "blockStateData": {
+        "block": "environmental:white_wisteria_leaves",
+        "state": "half=top"
+    },
+    "textureStitching": {
+        "1-3": "environmental:block/wisteria_leaves",
+        "7-9": "environmental:block/white_wisteria_leaves"
+    }
+}