More Better End plants (#1471)

* github pls

* add initial textures + blockstates

* models

* started writing up the blocks

* model adjustments, added item models and textures

* cleanup

* git moment

kubejs/assets/betterend/blockstates/hydralux_sapling.json

@@ -0,0 +1,8 @@
+{
+    "variants": {
+        "age=0":    { "model": "betterend:block/hydralux_sapling_1" },
+        "age=1":    { "model": "betterend:block/hydralux_sapling_2" },
+        "age=2":    { "model": "betterend:block/hydralux_sapling_3" },
+        "age=3":    { "model": "betterend:block/hydralux_sapling_4" }
+    }
+}