Add sound for jewelling

mods/jewels/README.txt

@@ -4,5 +4,7 @@ By Kaadmy
 
 Adds tools with different stats via a Jeweler's Workbench.
 
-Asset license: CC BY-SA 4.0
-Source license: LGPLv2.1
+Media license: CC BY-SA 4.0
+* jewels_jewelling_a_tool.ogg: InspectorJ, CC BY 3.0 <https://freesound.org/people/InspectorJ/sounds/354140/>
+
+Source code license: LGPLv2.1

mods/jewels/init.lua

@@ -222,6 +222,9 @@ minetest.register_node(
                   itemstack:take_item()
                end
 
+               minetest.sound_play({name="jewels_jewelling_a_tool"}, {gain=0.8, pos=pos, max_hear_distance=8})
+               -- TODO: Graphical effect
+
                achievements.trigger_achievement(player, "jeweler")
                achievements.trigger_achievement(player, "master_jeweler")
             end