feat: add create teller component (#591)

Fixes: #160

src/app/organization/organization.service.ts

@@ -159,6 +159,14 @@ export class OrganizationService {
     return this.http.delete(`/tellers/${tellerId}`);
   }
 
+  /**
+   * @param {any} teller Teller to be created.
+   * @returns {Observable<any>}
+   */
+  createTeller(teller: any): Observable<any> {
+    return this.http.post('/tellers', teller);
+  }
+
   /**
    * @returns {Observable<any>} Payment Types data
    */