Robust semi-mounted trays

the pack is finished adding forage collisions, strap, new color for blue and red
now that the 3d and the script finished it goes for test

I present to you the whole range of semi-mounted trays from the robust brand.
Model: R500SMS, R600SMS, R700SMS, R800SMS, R800SMB, R900SMB.
Configuration:
Top color: black, blue, green
Rim color: gray, red
Forage color: gray, red
Coming soon: flexible, fodder collision (otherwise it will be difficult to put on round boots) and other