[AnalogData] Return times as well
[AnalogData] Return times as well

AnalogEntity.get_data () will now return a tuple that looks like this:
(data, times, cont_count) - where data is the actual analog signal,
times are the corresponding time values and cont_count is a number
telling how many values are continuous before the first gap (refer
to the neuroshare documentation for more information).

G-Node/python-neuroshare,abhay447/python-neuroshare,abhay447/python-neuroshare,G-Node/python-neuroshare