xdecor - fix undefined detection of 3d_armor and add support for repair of

* backported 9f4002b749
* backported 9f4002b749

mods/xdecor/init.lua

@@ -2,6 +2,7 @@
 
 xdecor = {}
 local modpath = minetest.get_modpath("xdecor")
+local ar_api = minetest.get_modpath("3d_armor")
 
 -- Intllib
 local S
@@ -27,7 +28,7 @@ else
 end
 
 xdecor.S = S
-xdecor.reparaible_tools = {"pick", "axe", "shovel", "sword"}
+xdecor.reparaible_tools = {"pick", "axe", "shovel", "hoe"}
 
 dofile(modpath .. "/handlers/animations.lua")
 dofile(modpath .. "/handlers/helpers.lua")

mods/xdecor/src/workbench.lua

@@ -46,6 +46,18 @@ end
 function workbench:repairable(stack)
 	if custom_repairable[stack] then return true end
 
+	if ar_api then
+		for _, t in ipairs({
+			"armor_head",
+			"armor_torso",
+			"armor_legs",
+			"armor_feet",
+			"armor_shield",
+			}) do
+			if minetest.get_item_group(stack, t) then return true end
+		end
+	end
+
 	for _, t in ipairs(repairable_tools) do
 		if stack:find(t) then
 			return true