Add porcelain pickaxe to test tool uses

particuarly to falsify the claim in https://git.minetest.land/MineClone2/MineClone2/issues/3931
that the last use of a tool does not respect dig times - it does.

toolstest/init.lua

@@ -0,0 +1,24 @@
+local modname = minetest.get_current_modname()
+--local modpath = minetest.get_modpath(modname)
+local S = minetest.get_translator(modname)
+
+minetest.register_tool("toolstest:fragile_pick", {
+	description = S("Porcellain Pickaxe"),
+	_doc_items_longdesc = S("Fast digging but fragile pickaxe with 2 uses"),
+	_doc_items_hidden = false,
+	inventory_image = "default_tool_woodpick.png^[colorize:#FAFAFE",
+	groups = { tool=1, pickaxe=1, dig_speed_class=2, enchantability=15 },
+	tool_capabilities = {
+		-- 1/1.2
+		full_punch_interval = 0.83333333,
+		max_drop_level=1,
+		damage_groups = {fleshy=2},
+		punch_attack_uses = 2,
+	},
+	sound = { breaks = "default_tool_breaks" },
+	_repair_material = "group:wood",
+	_mcl_toollike_wield = true,
+	_mcl_diggroups = {
+		pickaxey = { speed = 9.5, level = 6, uses = 2 }
+	},
+})

toolstest/mod.conf

@@ -0,0 +1,2 @@
+name = toolstest
+author = cora