0.4

Added

• Support for battery attributes
• Support for maintenance attributes
• Set hooks can now be early or late
• More functionallity for connection states
• Object trees can now be obtained as dict of json
• Added units for energy
• Added support for minimum, maximum and precision checks
• Added vehicle connection state
• Connectors now publish their health status

Fixed

• Fixed types for some Enum attributes
• json now can contain null values
• Fixed charging object