grafx - Extensible Java Graphics Package Code

Adding PlugTheHoleMetric.

Adding SquaredHeightMetric.

Adding QuadraticBowlMetric.

Removing a println().

Adjusting determinePerspective().

Fixing the upper bound on LinearBowlMetric.

First stab at an accurate upper bound in LinearBowlMetric, not tested yet.

Saving some comments. I may write some sort of a mathematical proof soon.

Adding LinearBowlMetric.

Adding QuadraticNookAndCrannyMetric.