Substations now explode when destroyed (#5729)

* Substation destructible component

Substations now explode and create a destroyed machine which can be deconstructed.

* construction graph test failed

Does not need a path from start to finish but adding anyway to fix tests

* railing to structures

* Fixed Review

Updated parent to fix most comments.
Updated node to camelcase

* Updated target node graph

Still recovering...

* Final fix of graph

I swear

* Altered destroyed machine spawns

Removed HV cable and reduced steel sheets.

Resources/Prototypes/Recipes/Construction/Graphs/machines/machine.yml

@@ -16,6 +16,11 @@
             - material: Steel
               amount: 5
               doAfter: 2.5
+        - to: destroyedMachineFrame
+          steps:
+            - material: Steel
+              amount: 5
+              doAfter: 2.5
 
     - node: missingWires
       entity: UnfinishedMachineFrame
@@ -98,3 +103,15 @@
             - tool: Prying
               doAfter: 0.25
 
+    - node: destroyedMachineFrame
+      entity: MachineFrameDestroyed
+      edges:
+        - to: start
+          steps:
+            - tool: Welding
+              doAfter: 5            
+          completed:
+            - !type:SpawnPrototype
+              prototype: SheetSteel1
+              amount: 3
+            - !type:DeleteEntity {}

Resources/Prototypes/Recipes/Construction/machines.yml

@@ -23,3 +23,15 @@
   icon:
     sprite: Structures/Machines/parts.rsi
     state: "box_0"
+
+- type: construction
+  name: destroyed machine frame
+  id: MachineFrameDestroyed
+  graph: machine
+  startNode: start
+  targetNode: destroyedMachineFrame
+  placementMode: SnapgridCenter
+  canBuildInImpassable: false
+  icon:
+    sprite: Structures/Machines/parts.rsi
+    state: "destroyed"