Doc: Add "cookbook" section

[dbaston]

Feature description

I think it would be helpful to add a "cookbook" section to the docs where users can find answers to basic questions like:

• How do I clip a raster / vector layer?
• How to I reproject a raster / vector layer?
• How do I filter a vector layer?

I'm thinking that the questions would be simple enough that answers could be provided using the new GDAL CLI, the "classic" CLI, and the Python bindings.

Maybe, to avoid duplication, the answers could be cross-linked from CLI / Python API examples?

Additional context

Some sources of inspiration:

• Python GDAL/OGR Cookbook: https://pcjericks.github.io/py-gdalogr-cookbook/
• GIS Stack Exchange https://gis.stackexchange.com/questions/tagged/gdal?tab=Votes