WIP almost ready: A-frames & Stock Crate Add-ons

**Releasing tomorrow night guys**

Well its been a hectic week so ive been a bit slow on multiple fronts w mods & clients, but slowly catching up...

Just have to add a few texture options & deck configurations for the A-frames, clean up the  material finish on the stock crates, add some cargo for both, then we are good to go.

...oh also finish the twist locks for the A-frame. its sits in the 20ft container footprint.

Should be done sometime over the next few days.