Lechapt-Calmon: set intlType property

refs #334

src/pipe_flow/pl_lechaptcalmon.ts

@@ -76,6 +76,7 @@ export class PL_LechaptCalmon extends PressureLossLaw implements Observer {
         this._props.addObserver(this);
         this.material = LCMaterial.PVCPolyethylene;
         this.calculatedParam = prms.J;
+        this._intlType = "LechaptCalmon";
     }
 
     public static get materials() {