Added `yield from`

[jesper-friis]

Description

Made pylint happy by using yeild from instead of yielding in a for-loop.

Type of change

• [ ] Bug fix.
• [ ] New feature.
• [ ] Documentation update.
• [ ] Test update.

Checklist

This checklist can be used as a help for the reviewer.

• [ ] Is the code easy to read and understand?
• [ ] Are comments for humans to read, not computers to disregard?
• [ ] Does a new feature has an accompanying new test (in the CI or unit testing schemes)?
• [ ] Has the documentation been updated as necessary?
• [ ] Does this close the issue?
• [ ] Is the change limited to the issue?
• [ ] Are errors handled for all outcomes?
• [ ] Does the new feature provide new restrictions on dependencies, and if so is this documented?

Comments

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 71.82%. Comparing base (67288ea) to head (113733c).

Files	Patch %	Lines
ontopy/patch.py	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #720 +/- ## ========================================== - Coverage 71.85% 71.82% -0.04% ========================================== Files 16 16 Lines 3429 3425 -4 ========================================== - Hits 2464 2460 -4 Misses 965 965 ```

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