Official objects v1.4.0

• Add compatibility objects for most remaining RCT1 rides (#272, #276, #277, #278, #279, #280, #281)
• Add missing RCT1 walls (#275, #284, #286)
• Add RCT1 beta terrains (#282)
• Mark reversed trains as compatibility objects (#285)
• Fixes for some WW/TT objects (#262, #263, #265, #266, #267, #268, #270, #271, #283)