Reapply "expshovel"

This reverts commit 8c43726.

code/modules/mining/mine_items.dm

@@ -272,6 +272,19 @@ var/global/mining_shuttle_location = 0 // 0 = station 13, 1 = mining station
 		QUALITY_PRYING = 0.75
 	)
 
+/obj/item/weapon/shovel/experimental
+	name = "experimental shovel"
+	desc = "It's a damn cool shovel."
+	icon_state = "expshovel"
+	item_state = "expshovel"
+	item_state_world = "expshovel_world"
+	force = 10.0
+	toolspeed = 0.1
+	origin_tech = "materials=2;engineering=3"
+	qualities = list(
+		QUALITY_PRYING = 0.5
+	)
+
 /obj/item/weapon/shovel/spade
 	name = "spade"
 	desc = "A small tool for digging and moving dirt."

code/modules/research/designs.dm

@@ -1542,6 +1542,15 @@ other types of metals and chemistry for reagents).
 	build_path = /obj/item/weapon/circuitboard/miningdrill
 	category = list("Machine")
 
+/datum/design/expshovel
+	name = "Experimental shovel"
+	desc = "This is an experimental shovel that digs damn fast!"
+	id = "expshovel"
+	build_type = PROTOLATHE
+	materials = list(MAT_METAL = 2500, MAT_GLASS = 200)
+	build_path = /obj/item/weapon/shovel/experimental
+	category = list("Equipment")
+
 /datum/design/mining_drill_brace
 	name = "Machine Design (Mining Drill Brace)"
 	desc = "Brace for mining drill."

code/modules/research/research.dm

@@ -473,7 +473,7 @@ The tech datums are the actual "tech trees" that you improve through researching
 	required_tech_levels = list()
 	cost = 500
 
-	unlocks_designs = list("ordercomp", "supplycomp", "advmop", "holosign", "spraycan", "space_suit", "space_suit_helmet", "glowsticks_adv", "stimpack")
+	unlocks_designs = list("ordercomp", "supplycomp", "advmop", "holosign", "spraycan", "space_suit", "space_suit_helmet", "glowsticks_adv", "stimpack", "expshovel")
 
 /datum/technology/basic_mining
 	name = "Basic Mining"