Implemented two new feature calculator: Lempel Ziv complexity and Fourier Entropy

[nils-braun]

Following the description in https://en.wikipedia.org/wiki/Lempel-Ziv_complexity

[github-actions]

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./tests/units/feature_extraction/test_feature_calculations.py:332:121: E501 line too long (123 > 120 characters)
./tests/units/feature_extraction/test_feature_calculations.py:333:121: E501 line too long (126 > 120 characters)
./tests/units/feature_extraction/test_feature_calculations.py:336:5: E303 too many blank lines (2)

[github-actions]

You have style errors. See them below.

./tests/units/feature_extraction/test_feature_calculations.py:332:121: E501 line too long (123 > 120 characters)
./tests/units/feature_extraction/test_feature_calculations.py:333:121: E501 line too long (126 > 120 characters)
./tests/units/feature_extraction/test_feature_calculations.py:336:5: E303 too many blank lines (2)

[github-actions]

You have style errors. See them below.

./tests/units/feature_extraction/test_feature_calculations.py:332:121: E501 line too long (123 > 120 characters)
./tests/units/feature_extraction/test_feature_calculations.py:333:121: E501 line too long (126 > 120 characters)
./tests/units/feature_extraction/test_feature_calculations.py:336:5: E303 too many blank lines (2)

[github-actions]

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./tests/units/feature_extraction/test_feature_calculations.py:332:48: E127 continuation line over-indented for visual indent
./tests/units/feature_extraction/test_feature_calculations.py:342:5: E303 too many blank lines (2)

[coveralls]

Coverage increased (+0.06%) to 95.595% when pulling c09e134 on feature/add-lempel-ziv-complexity into b73cd09 on master.