StateMachine to manage the terminal vues chaining
fix import
Controller of TerminalRent
Controller of TerminalWelcome
Signleton access to controller
vue chainings aren't to be managed by main controller
TerminalPay vue added
we don't know if the vue is opened (like a frame), but it must be displayed
we don't know if the vue is opened (like a frame), but it must be displayed
Added all Terminal Vues (except sig_up and sign_in) and added into TerminalVueStateMachine