Added
- New site-specific class `Sen2VenusSite` that incorporates most features from former `Sen2Venus` class
- Helper classes `Sen2VenusSubsetSuffixes` and `Sen2VenusURLs`
- 2 basic tests under examples/
- add multi-resolution loading, via a new `subset` parameter value handling (`'all'`)
Changed
- `Sen2Venus` class now inherits torch's ConcatDataset class and creates multi-sites concatenated datasets based on a list of `Sen2VenusSite` instances
- example image for README.md is now showcasing 8-band interpolated input
- download process is cleaner, checks for existing compressed files and checks uncompressed folder for required files
- better management of existing dataset folders, removal of the .7z files.