Pypotato

This release serves to freeze the code to revise it.

The following changes were made:

* Validated potentials given by user according to the specific potentiostat model used
* Included **kwargs in the technique classes to account for parameters unique to each model, this will future proof the code and ensure we have enough flexibility. Example: CHI 760e can have the qt (quite time) and resistance parameters added at the end, if added using other potentiostats the parameters will be ignored.
* Added the translator for the CH601E and CHI1242B models.
* The library v1.3.6 was tested with CHI760E, CHI1205B and Emstat Pico.

Pypotato is ready to be used by the world! We will include more potentiostats soon, at the moment, only the CHI760e can be controlled.

After months of development and testing, here is the first release of the pytentiostat library.

Added NPV to techniques.

First release after the official migration from oliverrdz repository.