Add polygon as model domain

[CyprienBosserelle]

Add Feature: Model domain polygon

With this feature the model only allocates blocks inside/intersecting a given polygon. This would limit the model memory requirement.

• Add inside poly function (Winding number algo)
• Add poly intersection function
• Add polygon reading functions
• Integrate upstream of masking
• Apply the polygon to active cells for ROG
• Add tests for each functions
• Add Documentation
• Add overall test

Limitation

• Single polygon has to be left-handed, no holes
• GMT type polygon file

Future?

• Add GDAL Library? of a sub
• SHP file support with holes