Add CI/release workflows, artifacthub-pkg.yml, and package.json

- Add .github/workflows/ci.yaml (calls plugin-ci from .github repo)
- Add .github/workflows/release.yaml (calls plugin-release from .github repo)
- Add artifacthub-pkg.yml for ArtifactHub distribution
- Add package.json with headlamp-plugin scripts
- Add README.md

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.github/workflows/ci.yaml

@@ -0,0 +1,11 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  ci:
+    uses: privilegedescalation/.github/.github/workflows/plugin-ci.yaml@main