sandbag barricade half and three quarter height variants
two new deployed prefabs built from barricade.sandbags, same footprint and material so skins work with it
no cull like the other barricades
setup collision meshes for each, deploy volumes, nav obstacle and prevent_building box scaled to height
half height has its own gibs, three quarter shares the original gibs as they match perfectly
own prefab ids, manifest and english phrases regenerated
construction info named per variant ready