Added polygon feature

[2232def]

Summary of Changes
Added Polygon Layer Support:

• Introduced functionality to render and control polygon layers in the GeoPlot visualization.
• Added a new polygon_layers parameter to the GeoPlot.
• Added logic to handle polygons in the render method:
• Differentiated between polygons and points.

Enhanced GeoJSON Generation:

• Updated the GeoJSON generation process to support both polygons and points.
• Wrapped polygon coordinates in an additional list to comply with GeoJSON standards.