Bugfix/58/h3 parent approach

[zacdezgeo]

What I Changed

• Implemented the _find_touches function to identify H3 hexagon IDs that intersect with the boundary of the polygon defined by the AOI GeoJSON and include neighboring hexagons.
• Refactored the _recursive_polyfill method to handle cases where no H3 IDs are returned, allowing it to continue to higher resolutions until a valid result is found.
• Enhanced the logic to ensure the correct filtering of H3 hexagon IDs based on spatial join methods: within and touches.

How to Test It

• See test_h3_utils.py
• Use the generate_h3_ids function with various Polygon GeoJSON inputs to ensure that H3 IDs are generated correctly for different geographic shapes.
• Verify that the filtering based on spatial join methods works as expected, particularly with the new _find_touches function.
• Run the existing unit tests to confirm that no regressions have occurred in the functionality.

Quick example running with the touches keyword:

Other Notes

• Closes Raise exception when no data is returned for small features #58
• I somehow started from a branch that didn't have the support for multipolygon integrated. I'll resolve the merge conflict and see how to add multipolygon support tomorrow. cc: @alukach