Physics rework v6.1

This is  vision of physics and it may not coincide with reality

Installation:
copy the file to the "mod" folder and place it on top in the mod manager.

Recommended settings for v6.1 (can be changed in console or in config files):

g_cam_physics_value "1.0" (DEFAULT)
g_cam_physics "1" (DEFAULT)

g_cabin_suspension_stiffness "-1"
g_suspension_stiffness "0.3"
g_trailer_stability "0.5" (DEFAULT)
g_truck_stability "0.5" (DEFAULT)

g_brake_intensity "1.0" (DEFAULT)

residual_travel[] in chassis defs - 0.10 and 0.088 (DEFAULT)

ATTENTION!The g_cabin_suspension_stiffness parameter is set to "-1"! If you move the cabin suspension slider in the game's config, the parameter g_cabin_suspension_stiffness cannot become negative again! Then you have to set it to "-1" manually (in the console or in the profile's config.cfg file)!