Adds new method to contruct cubes (#3675)

* added new methods to Cube, tried to update spiceinit and cube tests

* fixed errors

* tweaks

* syntax errors

* re-added cout line that was suppoed to be there

* updates as per comments

* tempfile.open() lmao

* revert j flag

Co-authored-by: paarongiroux <47163875+paarongiroux@users.noreply.github.com>