Physics update for 1937 GP cars 1.5

An overhaul of physics of SimDream's 1937 GP cars
also ai updates for a number of tracks are included:
avus 8km short layout
bremgarten
deutschlandring
donington1938
monza10k (creates new "layout" for 37 cars)
nurburgring1967
interlagos 75
spa_faux_pre_war (creates new "layout" for 37 cars)
hockenheim 67 (creates new "layout" for 37 cars)
reims (creates new "layout" for 37 cars)
lemans 67 (creates new "layout" for 37 cars)
pau_1967
tripoli
napoli

These cars are now comfortable to drive and AI can drive them just fine. Cars have correct top speed, and correct lap times by AI (As there was no qualify in 1937, and race was very long, so the lap time in a short race is somewhat faster than the fastest lap time in reality).

If a car suddenly spins on the high banking (monza or linas-montlhery or some ovals) try increasing the rear ride height or spring stiffness.

installation: unzip to assetto corsa folder and overwrite existing files

Also it's better to goto "assettocorsa\content\cars\f1_1937_autounion\skins" and rename HermannPaulMüller to HermannPaulMuller so that in a random grid this driver's name appears instead of default AC driver's name