Enable waving small plants and leaves

Caveats: Double plants do not wave

mods/ITEMS/mcl_core/nodes_misc.lua

@@ -79,6 +79,7 @@ minetest.register_node("mcl_core:deadbush", {
 	_doc_items_longdesc = "Dead bushes are unremarkable plants often found in dry areas. They can be harvested for sticks.",
 	_doc_items_hidden = false,
 	drawtype = "plantlike",
+	waving = 1,
 	visual_scale = 1.0,
 	tiles = {"default_dry_shrub.png"},
 	inventory_image = "default_dry_shrub.png",

mods/ITEMS/mcl_core/nodes_trees.lua

@@ -69,6 +69,7 @@ local register_leaves = function(subname, description, longdesc, tiles, drop1, d
 		_doc_items_longdesc = longdesc,
 		_doc_items_hidden = false,
 		drawtype = "allfaces_optional",
+		waving = 2,
 		place_param2 = 1, -- Prevent leafdecay for placed nodes
 		tiles = tiles,
 		paramtype = "light",
@@ -88,6 +89,7 @@ local register_sapling = function(subname, description, longdesc, texture, selbo
 		_doc_items_longdesc = longdesc,
 		_doc_items_hidden = false,
 		drawtype = "plantlike",
+		waving = 1,
 		visual_scale = 1.0,
 		tiles = {texture},
 		inventory_image = texture,