would be great to have a large scale extent detection with overlaping options

[samysung]

Pitch
default detection in flair fills the use case where you have a list of test patches. But in real world case,
you would need a detection able to handle country scale extent with an optimized receptive field for every pixel, like in Odeon
(https://github.com/IGNF/odeon).

TODO: make src as a python package (adds a init.py file) and add a package inside the src package named detect to handle it, with a command line interface.