More bug fixing

Like before i have done before i did some more bug fixing. Such as

Changing the fonts so there all the same 

Fixing the main menu and adding a new font 

Fixing the control panel bug as it previously didn't work. It now takes you to a separate scene instead of a panel

Created a new script that makes the intro text last longer 

Fixed an error with the final doors. Previously the player could walk through the right one onto the planet 

I have removed the vent game object as it was causing the player to be knocked out the map 

I added some sound effects for the keypad. 

I added an escape pod (from the asset store) that the player can enter at the end in order to end the game