[Feature] Function which generates points grid over specified area

[SimonMolinsky]

Is your feature request related to a problem? Please describe. Pyinterpolate is about spatial interpolation. But interpolation must happen on the grid of points. It will be nice to have a function that generates a points grid over a specified area (mask) or over the specified limits (extreme North, South, West and East coordinates).

Describe the solution you'd like

• generate set of equidistant points within the specified area, user can choose points density,
• generate set of equidistant points within the specified limits (SNWE coordinates), user can choose points density,

Describe alternatives you've considered

• user must prepare an interpolation grid outside the package.

Additional context n/a

[SimonMolinsky]

Ok, I'll probably move this issue to a different package: https://github.com/SimonMolinsky/random-spatial-py, and then copy the solution from there.