Shutdown Faults (#1196)

### Summary
Created a shared app file for broadcasting shutdown node can data. Added
io layer implementations and CAN messages for BMS and FSM.

### Changelist 
Created new app_shdnLoop files, and new io files for BMS and FSM. 

### Checklist
*Please change `[ ]` to `[x]` when you are ready.*
- [x] I have read and followed the code conventions detailed in
[README.md](../README.md) (*This will save time for both you and the
reviewer!*).
- [x] If this pull request is longer then **500** lines, I have provided
*explicit* justification in the summary above explaining why I *cannot*
break this up into multiple pull requests (*Small PR's are faster and
less painful for everyone involved!*).

---------

Co-authored-by: Edwin <[email protected]>

can_bus/quadruna/BMS/BMS_tx.json

@@ -9,7 +9,7 @@
             },
             "State": {
                 "enum": "BmsState"
-            }            
+            }
         }
     },
     "AlertsContext": {
@@ -157,13 +157,13 @@
                 "max": 100,
                 "unit": "degC"
             },
-            "Seg4Cell2Temp":{
+            "Seg4Cell2Temp": {
                 "resolution": 0.1,
                 "min": 0,
                 "max": 100,
                 "unit": "degC"
             },
-            "Seg4Cell8Temp":{
+            "Seg4Cell8Temp": {
                 "resolution": 0.1,
                 "min": 0,
                 "max": 100,
@@ -272,7 +272,7 @@
             },
             "TractiveSystemPower": {
                 "resolution": 0.001,
-                "min": -100, 
+                "min": -100,
                 "max": 100,
                 "unit": "kW"
             }
@@ -348,17 +348,17 @@
         }
     },
     "CommitInfo": {
-      "msg_id": 140,
-      "cycle_time": 100,
-      "description": "BMS Current Running Git Commit Info",
-      "signals": {
-          "Hash": {
-              "bits": 32
-          },
-          "Clean": {
-              "bits": 1
-          }
-      }
+        "msg_id": 140,
+        "cycle_time": 100,
+        "description": "BMS Current Running Git Commit Info",
+        "signals": {
+            "Hash": {
+                "bits": 32
+            },
+            "Clean": {
+                "bits": 1
+            }
+        }
     },
     "OWC_Segment0to2_Status": {
         "msg_id": 141,
@@ -388,5 +388,18 @@
                 "bits": 16
             }
         }
+    },
+    "BMSShdnNodeStatus": {
+        "msg_id": 143,
+        "cycle_time": 100,
+        "description": "BMS Shutdown Node Status",
+        "signals": {
+            "HVDShdnOKStatus": {
+                "bits": 1
+            },
+            "TSIlckOKStatus": {
+                "bits": 1
+            }
+        }
     }
 }

can_bus/quadruna/CRIT/CRIT_tx.json

@@ -29,15 +29,15 @@
         }
     },
     "DriveMode": {
-		"msg_id": 504,
-		"cycle_time": 100,
-		"description": "Drive Mode.",
-		"signals": {
-			"DriveMode": {
-				"bits": 4
-			}
-		}
-	},
+        "msg_id": 504,
+        "cycle_time": 100,
+        "description": "Drive Mode.",
+        "signals": {
+            "DriveMode": {
+                "bits": 4
+            }
+        }
+    },
     "AlertsContext": {
         "msg_id": 505,
         "cycle_time": 1000,
@@ -66,5 +66,18 @@
                 "bits": 1
             }
         }
+    },
+    "CRITShdnNodeStatus": {
+        "msg_id": 507,
+        "cycle_time": 100,
+        "description": "CRIT Shutdown Node Status",
+        "signals": {
+            "ShdnSenOKStatus": {
+                "bits": 1
+            },
+            "InertiaSenOKStatus": {
+                "bits": 1
+            }
+        }
     }
 }