V0.03
- uploading logger data
- converting br files with logger data
- extend signature of some callbacks
- add property 'objectName' for all objects

V0.04
- property Object.externalObjects now throws an error if not supported (e.g. INA2000)
- add property Cpu.tasks
- add property Cpu.variables
- add property task.variables
- add examples: simple3.py, list_objects4.py, list_objects5.py, list_objects6.py, logger3.py

