Simplesecurity

- Added mode to seperate stdout and stderr (bandit plugin uses this)

- Deduplicator has moved to filter - Use
`from simplesecurity.filter import deduplicate` to use the deduplicator
- Added `filterSeverityAndConfidence` to `simplesecurity.filter`
- Filter level/ severity and confidence from the command line with -l INT
and -s INT
- Added colour modes: 0 for no colour, 1 for colour, 2 for high contrast
- Use -Z from the command line for high contrast and -z for no colour
- Minor tweaks

- New deduplication engine - So no more duplicates when running from the command
line! Use `from simplesecurity.deduplicate import deduplicate` to use the
deduplicator downstream.
- `id`s are now included in findings and are included in json and csv output

- Utf8 is not always the answer. But it is most of the time so use
`errors="ignore"` for chars that we can't decode

- Windows makes me want to cry 😢 - specify utf-8 in more places...

- fix error with poetry show
- set stdout to utf-8 to work with fhmake