-Creation of the ModifyApiPanel.java class that will be used by the
brand new ApiMenu under MainMenuBar when the user will click on the
current api of his choice : the panel contain basic options, one to
change the API description and the other one to choose the Characters he
want to be displayed on the CharPanel

-Creation of the selectedCharacters ArrayList under the EveAPI class
that will contain all of the Characters the user will have selected to
be displayed on the char panel

-Addition of more informations about the character on the bottom left
side of the char display under the attributeTracker whose name will be
changed in the near future

**Even tho I've created everything that should be needed to properly
selected the characters the user will be allowed to see on the screen,
the selection still doesn't work, more researches are to be done on that
aspect of the application

Now that the display is almost finished, time is to create the Database
/ Serialisation of the datas as every changes are lost every time the
user will close the application and reopen one

Still need to find an API empoint that will allow me to fetch the
informations about ID such as ItemIDs --> Item names, thus enabling not
only to display proper skillnames but also to properly fetch and display
the character assets which aren't fetch for now