6,7,8,10 slot trailers and more v0.2 Mod

6,7,8,10 slot trailers and more v0.2 Mod
Do not try buy the new semitrailer_gooseneck_8 trailer on the the main game only works on the PTS!!!
8th_slot_Wide trailer, plane parts are disabled use 6th_slot Wide trailer
7th_slot_semi_stepdeck
6th_slot_Wide trailer
6th_slot_semi_stepdeck
7 and 8 slots use the top deck
chain tires added
all 4 can be found in the trailer store
update rename mod to 6,7.8,10 slot trailers and more
added chain versions
semitrailer_gooseneck_8
scout_trailer_flatbed
scout_trailer_flatbed_2
scout_trailer_oiltank
scout_trailer_radar
semitrailer_gooseneck_4
semitrailer_m747
trailer_flatbed_ramps_4