Add debugger template and instructions

Author: ChristianZaccaria

Diff for: doc/usage/debugger/debugger.md

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+ ## Local debugging with VSCode
+ Steps outlining how to run MCAD locally from your IDE / debugger.
+ - Ensure you are authenticated to your Kubernetes/OpenShift Cluster.
+ - Copy the [launch.json.example](https://github.com/project-codeflare/multi-cluster-app-dispatcher/tree/main/doc/usage/debugger/launch.json.example) file and save it as `launch.json` in the `.vscode` folder in the root of your project.
+ - In the `launch.json` file, update the `args` sections with the path to your kubeconfig.
+ - In VSCode on the activity bar click `Run and Debug` or `CTRL + SHIFT + D` to start a local debugging session of MCAD.

Diff for: doc/usage/debugger/launch.json.template

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+{
+    // MCAD Debugger configuration for VSCode
+
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Launch MCAD Controller",
+            "type": "go",
+            "request": "launch",
+            "mode": "auto",
+            "program": "cmd/kar-controllers/main.go",
+            //"buildFlags": "-race",
+            "env": {
+                "DISPATCH_RESOURCE_RESERVATION_TIMEOUT":"120000",
+                "PREEMPTION":"false",
+                "DISPATCHER_MODE":"false",
+                "QUOTA_ENABLED":"false",
+            },
+            "args": ["--kubeconfig", "</path/to/your/kube/config>", "--v", "15", "--logtostderr"], 
+            // This controls the Working directory the code runs in
+            "cwd": "${workspaceRoot}",
+            "showLog": true
+        },
+        {
+            "name": "Launch MCAD Controller with QuotaManager",
+            "type": "go",
+            "request": "launch",
+            "mode": "auto",
+            "program": "cmd/kar-controllers/main.go",
+            "buildFlags": "-race",
+            "env": {
+                "DISPATCH_RESOURCE_RESERVATION_TIMEOUT":"120000",
+                "PREEMPTION":"false",
+                "DISPATCHER_MODE":"false",
+            },
+            "args": ["--kubeconfig", "</path/to/your/kube/config>", "--quotaEnabled", "true", "--v", "4", "--logtostderr"], 
+            // This controls the Working directory the code runs in
+            "cwd": "${workspaceRoot}",
+            "showLog": true,
+            "port": 8081
+        }
+    ]
+}