Comicbox

- Features

- Methods for getting covers and pages as PIL Images.
- Lazy metadata and cover pulling. Removes `metadata` and `cover` options.
- closefd option leaves archive open after method calls. Close manually with
close().
- .cbt Tarfile comic archive support.

- Features

- Issues numbers are now strings.
- Separate read metadata option from print metadata action.
- Added dry_run option.
- Namespace config under "comicbox" map to allow inclusion in caller configs.
- Allow modnames for local config sources, useful when comicbox is a library.

- Fixes
- Trap errors reading user config files.
- Fixed cover extraction to a directory.
- Abort with message if pages asked to extracted to a filee.
- Handle more filename patterns.

- Fixed some file name patterns
- Accept environment variables and config files to configure.
- CLI accepts more than one path as targets for action.
- CLI runs _every_ action on the command line.
- API `get_cover` init variable now set in config as `cover`
- Optional metadata parsing with config.

- Fixed combining CBI credits and with other format credits.
- More info in parsing warnings.
- More explicit raw tag titles.

- add colored python logging