chore: Move ADR helper files into folders with their corresponding ADR number

adr/011-tenant/NetworkPolicy.yaml

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+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: tenant-isolation-policy
+  namespace: testtenant
+spec:
+  podSelector: {}  # Selects all pods in the namespace
+  policyTypes:
+  - Ingress
+  - Egress
+  ingress:
+  - from:
+    - podSelector: {}  # Allow from all pods in the same namespace
+  egress:
+  - to:
+    - podSelector: {}  # Allow to all pods in the same namespace
+  - to:
+    - podSelector: {}
+      namespaceSelector: 
+        matchLabels:
+          kubernetes.io/metadata.name: openshift-dns # Target the openshift-dns namespace
+    # Note, only opening port 53 is not enough, will have to dig deeper into this one eventually
+    # ports:
+    # - protocol: UDP
+    #   port: 53
+    # - protocol: TCP
+    #   port: 53
+  # Allow egress to public internet only
+  - to:
+    - ipBlock:
+        cidr: 0.0.0.0/0
+        except:
+        - 10.0.0.0/8      # RFC1918
+        - 172.16.0.0/12   # RFC1918
+        - 192.168.0.0/16  # RFC1918
+        - 169.254.0.0/16  # Link-local
+        - 127.0.0.0/8     # Loopback
+        - 224.0.0.0/4     # Multicast
+        - 240.0.0.0/4     # Reserved
+        - 100.64.0.0/10   # Carrier-grade NAT
+        - 0.0.0.0/8       # Reserved

adr/011-tenant/TestDeployment.yaml

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+apiVersion: v1
+kind: Namespace
+metadata:
+  name: testtenant
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: testtenant2
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-web
+  namespace: testtenant
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: test-web
+  template:
+    metadata:
+      labels:
+        app: test-web
+    spec:
+      containers:
+      - name: nginx
+        image: nginxinc/nginx-unprivileged
+        ports:
+        - containerPort: 80
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: test-web
+  namespace: testtenant
+spec:
+  selector:
+    app: test-web
+  ports:
+  - port: 80
+    targetPort: 8080
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-client
+  namespace: testtenant
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: test-client
+  template:
+    metadata:
+      labels:
+        app: test-client
+    spec:
+      containers:
+      - name: curl
+        image: curlimages/curl:latest
+        command: ["/bin/sh", "-c", "sleep 3600"]
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-web
+  namespace: testtenant2
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: test-web
+  template:
+    metadata:
+      labels:
+        app: test-web
+    spec:
+      containers:
+      - name: nginx
+        image: nginxinc/nginx-unprivileged
+        ports:
+        - containerPort: 80
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: test-web
+  namespace: testtenant2
+spec:
+  selector:
+    app: test-web
+  ports:
+  - port: 80
+    targetPort: 8080