Ukis-metrics

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Added
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- added support for Python >=3.7 instead of >=3.8

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Added
^^^^^
- ``performance``: Added metrics execution time comparison to sklearn

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Added
^^^^^
- ``seg_metrics``: Added basic metrics implementation
- ``tests``: Added tests

Added
^^^^^
something was added

Fixed
^^^^^
something was fixed

Changed
^^^^^^^
something was changed