Cell balancing calculation added. Fixed rounding of real numbers to the second decimal place

qml/Utils/MathHelper.qml

@@ -0,0 +1,8 @@
+pragma Singleton
+import QtQuick 2.12
+
+QtObject {
+    function roundDouble(value) {
+        return Math.round((value + Number.EPSILON) * 100) / 100
+    }
+}