fixup asset packer

whoa, i just rewrote spacetime again

planetary constants - fix asset builds - orbits

fix renderers

[wip] spacetime build - add built spritesheets

[wip] spacetime build - add built sprites

adding player is pain

haha am idiot, needed to pull again

Merge branch 'master' of https://gitlab.com/starkingdoms.tk/starkingdoms.tk

texture loading