Fixed multiplayer errors.

This is a 12-meter trailer for loading logs with an autoload script (by the original Marhu). It has a large space between the forks, so it can be loaded with a wheel loader or a large jib loader.
I converted it to FS19 and added a function to move the loading position forward / backward depending on the length of the logs.

Control:
Start autoload - KEY_b
Start unloading - KEY_x
Toggle side (L / R) - KEY_o
Show / hide loading position - KEY_y
Move coding position - movingTool - AXIS_CRANE_ARM