Close #17073: Writing out of bounds when trains have over 144 cars

[Broxzier]

This fixes some of the unclear "openrct2.exe openrct2.exe openrct2.exe openrct2.exe openrct2.exe" etc crash logs we've been getting. The array was not large enough to hold more than 144 cars. Now the array is long enough, and a static_assert ensures that it will stay that way or generate an error during compile time.

This fixes:

• [dea49d] openrct2.exe: openrct2.exe, openrct2.exe, openrct2.exe, openrct2.exe, openrct2.exe, openrct2.exe, openrct2.exe, open... #17066
• [17c881] openrct2.exe: openrct2.exe, openrct2.exe, openrct2.exe, openrct2.exe #16927
• [726414] openrct2.exe: WindowRideSetPage, InputStateWidgetPressed #17051
• [beb68b] openrct2.exe: openrct2.exe, openrct2.exe, openrct2.exe, openrct2.exe, openrct2.exe #16758
• [301627] openrct2.exe: openrct2.exe #16702

And maybe more, I went back 3 months on the issue tracker.