Sploof and Sparks

Add Sploof #3 and Sparks #12 games.

Spook and Spire

Add Spook #13 and Spire #11 games.

Spaiji

Main feature is adding the Spaiji game (#2). Also added a sandbox mode (#8), and added a 6x6 version of Spargo / Margo (#9). See the milestone for the full list.

Spline and Spargo

Add the Spline game and Spargo game (#4).

See the milestone for a complete list of changes.