Folder/ZIP files details

[SbastianGarzon]

This pull request implements the '--details' argument (CLI and API). This option allows the users to explore the geoextent bbox or/and tbox of individual files inside a folder or ZIP file. Additionally, individual files return the geoextent handler (e.g handleVector) used to extract bbox or/and tbox.

Documentation and test updated.

Fixes #115

[SbastianGarzon]

2. Can you please post a full example of using the option in a comment? that helps me understand the user perspective. Thanks!

Regular usage:

geoextent -b -t tests/testdata/folders/folder_two_files/

{'format': 'folder', 'crs': '4326', 'bbox': [2.052333387639205, 41.31703852240476, 7.647256851196289, 51.974624029877454], 'tbox': ['2018-11-14', '2019-09-11']}

Details:

geoextent -b -t --details tests/testdata/folders/folder_two_files/

{'format': 'folder', 'crs': '4326', 'bbox': [2.052333387639205, 41.31703852240476, 7.647256851196289, 51.974624029877454], 'tbox': ['2018-11-14', '2019-09-11'],'details': {'muenster_ring_zeit.geojson': {'format': 'geojson', 'geoextent_handler': 'handleVector', 'bbox': [7.6016807556152335, 51.94881477206191, 7.647256851196289, 51.974624029877454], 'crs': '4326', 'tbox': ['2018-11-14', '2018-11-14']}, 'districtes.geojson': {'format': 'geojson', 'geoextent_handler': 'handleVector', 'bbox': [2.052333387639205, 41.31703852240476, 2.228044995904277, 41.46829759051035], 'crs': '4326', 'tbox': ['2019-09-11', '2019-09-11']}}}

[nuest]

Thanks - good job! Just one minor change @SbastianGarzon: It's always good to try to keep the tests very focused, otherwise you have 10 failing tests although only one feature is broken. You already did that for the CLI one!

Sidenote: let's get rid of Travis soon...