Add ability to snap pasted entities to the terrain
- will search based on foundations only
- snap entire build to single height even if it overhangs the ledge
- convar is `paste_snap_terrain`
- can use `paste_height_offset` to control height offset after paste
Add more filters
- `paste_deployables`
- `paste_building_only` (only building blocks)
- `paste_foundations_only`
Add `copybuilding`
- will copy every building block & decay entity of the base you are looking at
- won't copy non-decay entities