grafx - Extensible Java Graphics Package Code

Adding some comments.

Caching the sqrtEdgesCornersWeight() factors on <x,y> grid.

Adding comments describing exactness of worst score computation for nook and
cranny metrics.

Backing out the corner/edge logic in "plug the hole" metric. It did not have a
desirable effect.

Modifying "plug the hole" metric, making holes near corners more disagreeable.

Renaming NOOK_AND_CRANNY_METRIC to LINEAR_NOOK_AND_CRANNY_METRIC.
Renaming BOWL_METRIC to LINEAR_BOWL_METRIC.
Defining LINEAR_NOOK_AND_CRANNY_METRIC and QUADRATIC_BOWL_METRIC, both of which
are currently set to zero.

Better way of defining levels, not in array.

Increasing qSearchBreadth.

Adding sample of what the 7-er blocks look like.

Making the 7-er level a bit more reasonable.