Add optional geometry option to summary endpoint

[zacdezgeo]

What I Changed

Option supports 'point' and 'polygon' keywords. Default is 'None' which would exclude the geometry from the response.

How to Test It

• Run tests python -m pytest
• Test with example in notebooks/space2stats_api_demo.ipynb or your variation

Other notes

• I tried generating an object that we could directly read into a GeoDataframe, but I ran into serialization issues when returning a shapely.Point object in the response. The other alternative would be to build a valid feature collection for a geojson that could be read directly, but that would match our expected Dataframe response. Right now, the solution is to convert the geometry column to a shapely.Point or shapely.Polygon with something like the following:

df['geometry'] = df['geometry'].apply(lambda geom: shape(geom))
gdf = gpd.GeoDataFrame(df, geometry='geometry', crs='EPSG:4326')

• Closes Optional geometry parameter for summary endpoint #13

[vincentsarago]

Suggested change

	h3_ids: List[str], geometry_type: Optional[str]
	h3_ids: List[str], geometry_type: Optional[Literal["point", "polygon"]]