feat: add components for external services (#376)

- Add sms and edit-sms component
- Add notification and edit-notification component
- Add email and edit-email component
- Add amazon-s3 and edit-amazon-s3 component

Fixes: #182 and Fixes: #183

src/app/system/system.service.ts

@@ -99,4 +99,21 @@ export class SystemService {
     return this.http.put(`/configurations/${configurationId}`, configuration);
   }
 
+  /**
+   * @param {string} externalConfigurationName External Configuration Name.
+   * @returns {Observable<any>} External Configuration.
+   */
+  getExternalConfiguration(externalConfigurationName: string): Observable<any> {
+    return this.http.get(`/externalservice/${externalConfigurationName}`);
+  }
+
+  /**
+   * @param {string} externalConfigurationName External Configuration Name.
+   * @param {any} externalConfiguration External Configuration.
+   * @returns {Observable<any>}
+   */
+  updateExternalConfiguration(externalConfigurationName: string, externalConfiguration: any): Observable<any> {
+    return this.http.put(`/externalservice/${externalConfigurationName}`, externalConfiguration);
+  }
+
 }