Extend black and flake8 line length to 100 characters

[rettigl]

…, and re-lint code

[coveralls]

Pull Request Test Coverage Report for Build 5366169291

• 37 of 51 (72.55%) changed or added relevant lines in 14 files are covered.
• 7 unchanged lines in 5 files lost coverage.
• Overall coverage remained the same at 75.429%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
sed/calibrator/momentum.py	9	10	90.0%
sed/io/tiff.py	0	1	0.0%
sed/io/hdf5.py	1	3	33.33%
sed/loader/flash/loader.py	9	12	75.0%
sed/loader/mpes/loader.py	3	10	30.0%

Files with Coverage Reduction	New Missed Lines	%
sed/binning/binning.py	1	64.23%
sed/calibrator/momentum.py	1	69.97%
sed/io/tiff.py	1	85.48%
sed/core/processor.py	2	39.94%
sed/loader/mpes/loader.py	2	39.17%

Totals
Change from base Build 5313551544:	0.0%
Covered Lines:	2898
Relevant Lines:	3842

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💛 - Coveralls