When wielding items, allow selecting which hand the item should be
wielded in.
Currently this has no actual effect on the mechanics of combat - that'll
come next.
Change-Id: Ic289ca2d8fa6f5fc0ad5bd0b012818a3acd8599e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5470
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI