Inels-mqtt

- fix callable listners from device out of the lib
- fix getting value for switch
- fix tests

- changing class names due to the third party usage.

- new class InelsSensor
- move defining features from device class into each platform class
- test for features
- bump version

- Create new classes InelsLight and InelsSwitch
- take all advantage of Device class and extend it by features and more in feature
- Testing
- new way of testing each device type will have own test cases

Manage callback listeners
- Change listening from broker direct to the third party apps. Now listeners from borker are managed in device object and process hex data format into the decimal world inside callback function of Device.
- New listener collection registered on Device object from outside into the device object. There is waiting for data changing from lower layer of listeners.

- handling is_available device fun when connected topic is not available in mqtt borker... return false