democratic-csi: Initial deployment

Deploying _democratic-csi_ to manage PersistentVolumeClaim resources,
mapping them to iSCSI volumes on the Synology.

Eventually, all Longhorn-managed PVCs will be replaced with Synology
iSCSI volumes.  Getting rid of Longhorn should free up a lot of
resources and remove a point of failure from the cluster.

argocd/applications/democratic-csi.yaml

@@ -0,0 +1,16 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: democratic-csi
+  namespace: argocd
+spec:
+  destination:
+    server: https://kubernetes.default.svc
+  project: default
+  source:
+    path: democratic-csi
+    repoURL: https://git.pyrocufflink.blue/infra/kubernetes.git
+    targetRevision: democratic-csi
+  syncPolicy:
+    automated:
+      prune: true