Add support for requesting and using otp for verifying some requests (#527)

Co-authored-by: Thomas Rittson <trittson@bitwarden.com>

common/src/models/response/keyConnectorUserKeyResponse.ts

@@ -0,0 +1,10 @@
+import { BaseResponse } from './baseResponse';
+
+export class KeyConnectorUserKeyResponse extends BaseResponse {
+    key: string;
+
+    constructor(response: any) {
+        super(response);
+        this.key = this.getResponseProperty('Key');
+    }
+}