Quick patch to get cherry saplings growing pending inclusing of a proper tree API

mods/ITEMS/mcl_core/functions.lua

@@ -1089,6 +1089,7 @@ end
 -- pos: Position
 -- node: Node table of the node at this position, from minetest.get_node
 -- Returns true on success and false on failure
+-- TODO: replace this with a proper tree API
 function mcl_core.grow_sapling(pos, node)
 	local grow
 	if node.name == "mcl_core:sapling" then
@@ -1103,6 +1104,8 @@ function mcl_core.grow_sapling(pos, node)
 		grow = grow_spruce
 	elseif node.name == "mcl_core:birchsapling" then
 		grow = grow_birch
+	elseif node.name == "mcl_cherry_blossom:cherrysapling" then
+		return mcl_cherry_blossom.generate_cherry_tree(pos)
 	end
 	if grow then
 		grow(pos)