Adding username workflow to Crafty

[Cartrigger]

Adding a username workflow to Crafty via login ticket

(HOW)
In the middle of a normal login ticket, it will prompt you to click a button, a modal will pop up where you can enter your username, from there it will check against mojang-lib library where it will either respond with a new set of embeds or another set of embeds that are for failure
NOTE: If the username is non-existent it will call back as undefined uuid, this will be fixed by using the current workflow to check usernames via a command

[Cartrigger]

Second part was implemented as /lookup
Will also add a skip button because not all would probably appreciate that

[Cartrigger]

This is being reconsidered fully as a optional part