Add FilterError iterator

[BooleanCat]

Please provide a brief description of the change.

Allow for filtering iterators where the predicate can return an error.

Which issue does this change relate to?

135

Contribution checklist.

• [x] I have read and understood the CONTRIBUTING guidelines
• [x] All commits in my PR conform to the commit hygiene section
• [x] I have added relevant tests
• [x] I have not added any dependencies

Additional context

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (7a53055) to head (0d45519).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #136 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 32 32 Lines 403 423 +20 ========================================= + Hits 403 423 +20 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[danail-branekov]

Looks like precisely how I imagined it, @BooleanCat :)