Bump bind-operator to v0.2.0 and deploy companion TSIG API

v0.2.0 adds the BindTSIGAPI CRD and companion API that
vault-plugin-secrets-bind-tsig calls to create, rotate and delete TSIG
keys. This rolls the operator forward and deploys an API instance.

- Bump the operator image and the pulled CRD bundle to v0.2.0.
- Broaden the operator ClusterRole with deployments, serviceaccounts and
  roles/rolebindings so the BindTSIGAPI reconciler can deploy the API and
  its namespaced RBAC.
- Add a BindTSIGAPI (bind-tsig-api) in bind-internal; the operator
  reconciles it into a Deployment, Service, ConfigMap, master-token Secret
  and RBAC. Keys are created in bind-internal alongside the authoritative
  cluster.
- Add the generated kubeconform schema for BindTSIGAPI.

apps/base/bind-internal/tsig-api/kustomization.yaml

@@ -0,0 +1,6 @@
+---
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - tsig-api.yaml

apps/base/bind-internal/tsig-api/tsig-api.yaml

@@ -0,0 +1,27 @@
+---
+# Companion TSIG API. The operator reconciles this into a Deployment, Service,
+# ConfigMap, master-token Secret and namespaced RBAC. vault-plugin-secrets-bind-tsig
+# calls it to create/rotate/delete TSIG keys, which it does by managing
+# BindTSIGKey resources in this namespace (the operator reconciles the material).
+#
+# The master access token Secret (bind-tsig-api-token) is generated by the
+# operator if absent; a VaultStaticSecret may later pre-seed/overwrite it so the
+# token is sourced from Vault rather than generated in-cluster.
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindTSIGAPI
+metadata:
+  name: bind-tsig-api
+  namespace: bind-internal
+spec:
+  image: git.unkin.net/unkin/bind-tsig-api:v0.2.0
+  replicas: 1
+  port: 8443
+  # targetNamespace defaults to this resource's namespace (bind-internal), where
+  # the authoritative cluster and its keys live.
+  resources:
+    requests:
+      cpu: 25m
+      memory: 64Mi
+    limits:
+      cpu: 250m
+      memory: 128Mi