Model loading rework (1.14 prep)

remove unnecessary complexity
access sprites only at PostStitch

src/main/kotlin/mods/betterfoliage/client/render/RenderMycelium.kt

@@ -22,7 +22,7 @@ class RenderMycelium : AbstractBlockRenderingHandler(BetterFoliageMod.MOD_ID) {
     val myceliumIcon = iconSet(BetterFoliageMod.LEGACY_DOMAIN, "blocks/better_mycel_%d")
     val myceliumModel = modelSet(64, RenderGrass.grassTopQuads(Config.shortGrass.heightMin, Config.shortGrass.heightMax))
 
-    override fun afterStitch() {
+    override fun afterPreStitch() {
         Client.log(INFO, "Registered ${myceliumIcon.num} mycelium textures")
     }