Add subcommand `dico info`

This merge request adds a subcommand dico info displaying the following elements:

• A ASCII drawing of a dictionary
• The version of the application
• The list of people who contributed to the project
• The home page URL of the project

Actual result:

$ bin/dico info


  DDDD           III           CCCC           OOO
  D   D           I           C              O   O
  D   D --------> I --------> C    --------> O   O
  D   D           I           C              O   O
  DDDD           III           CCCC           OOO

           ,..~~~'''""-._ _.-""'''~~~..,
          / /            v            \ \
         / /             |             \ \
        / /              |              \ \
       / /.~~~'''""'-.._ | _..-'""'''~~~.\ \
      / /               \|/               \ \
     /_..~~~'''""'--.__  |  __.--'""'''~~~.._\
    -------------------\\|//-------------------

Version 0.1

Project contributors:
    Alexandre Blondin Massé
    Charlie Hébert-Pinard
    Jean-Marie Poulin
    Lorena Giovanna Medina Cardenas
    Nicolas Goulet
    Ting-Yang Lai

Home page: https://gitlab.info.uqam.ca/dictionary/dico

To get more information about how to use this program:

    $ dico -h

or

    $ dico --help