Dewi

- use type annotations w/o typing module, requires python 3.10+
- use dewi-core 5.4.0
- use dewi-commands 3.1.0

- use dewi-core 5.0.0 (<6)
- use dewi-commands 3.0.0 (<4)
- remove unused dewi/workspace

- requires Python 3.8
- updated to use dewi-core 4.0.0

- Updated to run with latest other DEWI modules:
dewi-core 3.1.0 and dewi-commands 2.1.0

- !!! DEWI goes into multiple repositories and packages
- use only 'protected' members with single leading underscore ('_')
- commands: argparse.Namespace object's 'protected', custom
members end with '_' instead of leading '_',
- add sortphotos command to sort a bunch of photos into directories
named based on shoot date
- add http command to stream /dev/urandom, mainly for testing purposes
- add primes command to calculate the first N primes
- add packt command to download books and codes from packtpub
note, that it's broken as of now as the web UI is modified already
- keep commands only
- start using semantic versioning

- MainApplication: --debug implies --log-level debug
default log level: info
- images/filedb: add count() to count entries in photo_file_info table
- images related dewi_commands.commands: use exiftool-5.26 as MacPorts updated it
- safe_delete_images: handle Exceptions at unlink(), mainly PermissionErrors
- add further log_*() calls into dewi.rrdtool & realtime_sync