AI update for monza 66 road and montjuich 2023-02-07

AI update for monza solves AI running wide at Curva Grande and some minor problems
AI update for montjuich prevents 67 gp cars crash at the jump before the 1st corner
tested with 1967 and 1923 gp cars

I'll update the monza 10k's AI soon

NOTE: the AI spline for monza 66 is NOT my work, nor is the default one by Kunos. and I can't find the name of the author, if anyone knows the author, please let me know