welding modular mines/grenades to salvage them (#12701)

Resources/Prototypes/Recipes/Construction/Graphs/weapons/modular_grenade.yml

@@ -21,6 +21,15 @@
       steps:
       - material: Cable
         doAfter: 0.5
+    - to: start
+      completed:
+      - !type:SpawnPrototype
+        prototype: SheetSteel1
+        amount: 5
+      - !type:DeleteEntity
+      steps:
+      - tool: Welding
+        doAfter: 2
 
   - node: wiredCase
     entity: ModularGrenade      
@@ -80,4 +89,4 @@
         doAfter: 0.5
         completed:
         - !type:EmptyContainer
-          container: payload
+          container: payload

Resources/Prototypes/Recipes/Construction/Graphs/weapons/modular_mine.yml

@@ -23,6 +23,15 @@
           sprite: Objects/Misc/proximity_sensor.rsi
           state: icon
         name: proximity sensor
+    - to: start
+      completed:
+      - !type:SpawnPrototype
+        prototype: SheetSteel1
+        amount: 5
+      - !type:DeleteEntity
+      steps:
+      - tool: Welding
+        doAfter: 2
 
   - node: wiredCase
     entity: LandMineModular