Min & Max Cell Voltages cut off due to variable type

[ricjohn]

when consuming min & max cell voltages via dbus you get a int32 value

Interface com.victronenergy.BusItem:
(Int32 retval) SetValue(Variant value)
(Variant value) GetMin()
(Variant value) GetMax()
(Variant value) GetDefault()
(String descr) GetDescription()
(Variant value) GetValue()
(String value) GetText()

Example
dbus -y com.victronenergy.battery.socketcan_can0 /System/MaxCellVoltage GetValue
value = 3.381999969482422

dbus_modbustcp exposes this as unint16 with limiting the field to two digits after the decimal point
com.victronenergy.battery System; minimum cell voltage 1290 uint16 100 0 to 655.35 /System/MinCellVoltage no V DC
com.victronenergy.battery System; maximum cell voltage 1291 uint16 100 0 to 655.35 /System/MaxCellVoltage no V DC

For battery voltages it would make sense to change the data type not to lose the precision