Add egg-info to gitignore

[codecov[bot]]

Codecov Report

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

Comparison is base (7ec4b89) 76.97% compared to head (48b27e2) 76.28%. Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #44 +/- ## ========================================== - Coverage 76.97% 76.28% -0.70% ========================================== Files 7 6 -1 Lines 278 253 -25 ========================================== - Hits 214 193 -21 + Misses 64 60 -4 ``` | [Flag](https://app.codecov.io/gh/fmauch/catmux/pull/44/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Felix+Exner+%28fexner%29) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/fmauch/catmux/pull/44/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Felix+Exner+%28fexner%29) | `76.28% <ø> (-0.70%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Felix+Exner+%28fexner%29#carryforward-flags-in-the-pull-request-comment) to find out more.

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