Automatic clustering (BETA) and User Interface

New TTclust udpate! Automatic clustering and Graphical User Interface.

TTclust Version 4.5 :

A new automatic clustering method was implemented based on
kmeans clustering method and the Elbow method to find the
optimal number of clusters. Use with Caution : to my point of
view, it does not cluster enough. I will improve this automatic
methode laters. To use it, just specify auto to the -ng argument.

TTclust-GUI Version 0.9 :

A GUI was implemented thanks to the GOOEY package. more information on
README.md soon (with examples case).