feat: add saml settings API

app/javascript/dashboard/api/samlSettings.js

@@ -0,0 +1,26 @@
+/* global axios */
+import ApiClient from './ApiClient';
+
+class SamlSettingsAPI extends ApiClient {
+  constructor() {
+    super('saml_settings', { accountScoped: true });
+  }
+
+  get() {
+    return axios.get(this.url);
+  }
+
+  create(data) {
+    return axios.post(this.url, { saml_settings: data });
+  }
+
+  update(data) {
+    return axios.put(this.url, { saml_settings: data });
+  }
+
+  delete() {
+    return axios.delete(this.url);
+  }
+}
+
+export default new SamlSettingsAPI();