Better file parsing (async + LOCUS line) / Euroscarf / CORS for component testing

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 92.00000% with 8 lines in your changes missing coverage. Please review.

Project coverage is 91.39%. Comparing base (8ce6b89) to head (02fc3c3). Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
dna_functions.py	89.39%	7 Missing :warning:
main.py	96.87%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #216 +/- ## ========================================== - Coverage 91.49% 91.39% -0.10% ========================================== Files 10 10 Lines 1634 1709 +75 ========================================== + Hits 1495 1562 +67 - Misses 139 147 +8 ``` | [Flag](https://app.codecov.io/gh/manulera/ShareYourCloning_backend/pull/216/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Manuel+Lera-Ramirez) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/manulera/ShareYourCloning_backend/pull/216/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Manuel+Lera-Ramirez) | `91.39% <92.00%> (-0.10%)` | :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=Manuel+Lera-Ramirez#carryforward-flags-in-the-pull-request-comment) to find out more.

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