Space Stations and UI improvements

Hello Shippers!

im very exited to bring you the next Ship'n update! this one is cool! it about contracts and the space stations that were left unused in the previous version

Changelog:

• Active Contract now visible in the Menu Menu
• Added space station functionality
  • Viewing Available Contracts now have to be done from space station
  • space station will now eject you when you leave the space station men
• Changed contract area colour to match the arrow
• Removed the enemy near spawn