Changing my patreon tiers! (Input welcome!) (Patreon)

- Deleting the Galaxy (£8) tier (moving pledgers to Planetary where they'll keep previous rewards).

- Moving timelapse benefit to Planetary (£5).

- Adding new benefit of wips/gif wips to Planetary (wips that I don't bother putting on twitter).

- Lowering price of SuperNova from £12 to £9.

- Adding 10% discount to my Gumroad wares to SuperNova tier.