[2023] Take Note! The End of Free XP ships is nigh!

For anyone who remembers, the initial Missouri release for 750,000 Free XP was a massive grind when it was introduced. FXP has become progressively easier to obtain over the game's lifetime, and with the introduction of the Research Bureau we essentially have two systems for the same thing; FXP is very directly tied to line resets as it speeds up or eliminates the regrinding process. Moving these ships to coal allows them to remain available long-term through a free resource while also simplifying the ways to attain ships.