Wrapper for binstats

[willschlitzer]

Wrap binstats, which would use the gmtbinstats module.

Implement gmtbinstats which reads arbitrarily located (x,y[,z][,w]) points (2-4 columns) from standard input [or table] and for each node in the specified grid layout determines which points are within the given radius. These point are then used in the calculation of the specified statistic. The results may be presented as is or may be normalized by the circle area to perhaps give density estimates. Alternatively, select hexagonal tiling instead or a rectangular grid layout.

Are you willing to help implement and maintain this feature? Yes

Checklist for wrapping GMT Module

• 'Initial feature implementation' Pull Request (Wrap binstats #1652)
• 'Add missing aliases to module' documentation PR
• 'Support additional functionality in module' PR (optional)
• 'Add gallery example for module' documentation PR
• 'Add tutorial for module' documentation PR (optional)