Remove cycles in module dependencies

Having cycles in the modules occaisionally prevents the extension from starting.

- Run GitHub Actions check for cycles in module dependencies using dpdm
- Fix cli -> tools cycle
- Remove cluster -> clusterViewLoader cycle
- Move name validation functions out of OpenShiftItem to avoid cycles
- Refactor ServerlessFunction -> ServerlessFunctionModel to avoid cycles
- Remove view -> loader -> functions cycle

Signed-off-by: David Thompson <davthomp@redhat.com>

Author: datho7561

.github/workflows/circular-dependency-check.yml

@@ -0,0 +1,29 @@
+name: Check for cycles in modules
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  cyclesCheck:
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v4
+
+      # Set up Node
+      - name: Use Node.js 18
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+
+      # Run install dependencies
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Check cycles
+        run : npm run check-cycles