feat: add create payment type component (#543)

Fixes: #164

src/app/organization/organization.service.ts

@@ -90,6 +90,14 @@ export class OrganizationService {
     return this.http.get('/paymenttypes');
   }
 
+  /**
+   * @param {any} paymentType Payment type to be created.
+   * @returns {Observable<any>}
+   */
+  createPaymentType(paymentType: any): Observable<any> {
+    return this.http.post('/paymenttypes', paymentType);
+  }
+
   /**
    * @param {string} paymentTypeId Payment type ID of payment type to be deleted.
    * @returns {Observable<any>}