make all possible functions const

src/driveModi/Modi/CaptureRoute/captureRoute.cpp

@@ -35,7 +35,7 @@ void CaptureRoute::run() {
     }
 }
 
-double CaptureRoute::getDistanceToLastPoint() {
+double CaptureRoute::getDistanceToLastPoint() const {
     if (!this->lastSavedPoint.isInit())
         return 0;
     return this->lastSavedPoint.distanceTo(this->navigation->getCurrentPosition());