Got new QuadsKeeper to work!

Lags. Really really lags. Probably something to do with creating a
lambda every time a thing checks quadrants... lol.

QuadsKeepr now keeps a grid of quadrants instead of just columns. This
grid can have rows and columns pushed and popped and shifted and
unshifted and all that good stuff.
Quick isThingInQuadrant fix

Moved it one scope up. Still lag, but not as bad.
Using rows, cols for Quadrant checking