comment and text fixing in ohmpy and modification of the interrogation array to have something actually working for demonstration

installation_file.txt: list package that need to be installed as well the creation of the virtual environment -> must evolves towards a setup.sh file

version testée sur l'ohmpi. Correction de bugs mineurs. Le code fonctionne et ferme les tickets #3 et #5

the append_and_save function has been modified because it is not possible to use the feather binary format on an arm architecture. Move to a simple csv file for saving #5

bugs fixed on prints at the beginning of the file and all parameter values are gathered in one place

Add a function for the quadripole file import that features a test to verify that electrode index do not exceed the maximum number of electrodes (issue #2)

modification de la fonction switch_mux(): lors de l'activation des port, il faut forcer le type des variables pour qu'elles ne soient pas du type array.

I added a function that replace all if statement and control multiplexer based on the two configuration files (path2elec and quadmux.

Instead of reading the interrogation scheme file with another method in order to have its length. I simply used the method shape on N.

* ABMN.txt: interrogation scheme (development and testing purposes)
* path2elec.txt: configuration file: state of the multilexer channels to access each electrode
* quadmux.txt: communication channel of the multiplexer for electrodes A, B, M and N.

suppression de lignes inutiles.