Let custom mqtt converter to process array data by its own.

[devaskim]

Data from my broker has the following format:

[false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false]

With this PR my custom converter gets the whole array and covert its based on index of value and pre-defined mapping rules. Without these changes the converter gets values one by one.