feat(manager.registry): Add external registry management

ts_interfaces/data/externalregistry.ts

@@ -0,0 +1,12 @@
+import * as plugins from '../plugins.js';
+
+export interface IExternalRegistry {
+  id: string;
+  data: {
+    type: 'docker' | 'npm';
+    name: string;
+    url: string;
+    username: string;
+    password: string;
+  };
+}