FFB: Tire Scrub & Road Bumbs effect 1.0b

Change the following lines in "ffb_custom_settings.txt" file:

* Scrub effect:
(FL_scrub (soft_clip FL_scrub 0.6 0.0))
(FL_scrub (* FL_scrub (oscillator 1.2)))
(FR_scrub (soft_clip FR_scrub 0.6 0.0))
(FR_scrub (* FR_scrub (oscillator 1.2)))

* Truck Bumps effect:
(FL_bump_amplitude (+ (* 0.2 FL_bump_kerb) (* 0.2 FL_bump_track)))

(FR_bump_amplitude (+ (* 0.2 FR_bump_kerb) (* 0.2 FR_bump_track)))


Credits: Thanks to Jack Spade custom ffb files.