* Improvement of the train action usability.
* Prints the current iteration number in verbose mode.
* The number of iterations before saving the data can be changed by a command line optin.
* Added option to write training result to file even when in preview.
* Prints time elapsed for each iteration in verbose mode when training.
* Created a single script to call the other ones.
Usage is ./faceswap.py {train|extract|convert}
* Improved the help from the commands.
* Added forgotten faceswap.py file.
* Changed gitignore to add the scripts.
* Updates gitignore.
* Added guarding not to execute code when imported.
* Removed useless script. Display help when no arguments are provided.
* Update README
