fixed mode and filterproperties

[Pittini]

1. corrected .ma4 > .mb3
2. set_mode was not working > corrected
3. FilterRemaining was permanent 0 > corrected formula
4. Added getFilterlife and getFilterused

[maxinminax]

• FilterRemainin's unit is percent
• Filter info like filterLife or filterUsed can get directly from device.properties, the get method only create for the properties are populate in the device group