[REQUEST] - Container type support for WFRP4

[wujewski]

Is your feature request related to a problem? Please describe.
I wanted to create a living city with loads of merchants scattered throughout it. When I wanted to create stables I wasn't able to do so, because horses are a container type in WFRP and therefore are not displaying on the list of items available to sell.

Describe the solution you'd like
I would like for the "container" type items to display among other items.

Describe alternatives you've considered
One of the additional modules for Warhammer changes horses from container into regular trappings, but such way does not allow keeping items on horses, making it impossible to reduce the equipment's encumbrance.