add metaclass to features to add sclaes to features and functionality for sertain scales
add proxy method to feature to get feature of correct classw
remove print statement from the code
add tests to check binary feature functionality
Merge branch 'feature/features_operation' into develop
update README
init feature operations functionality. Add fonctionality for binary features.
add tests for feature operations
add test to cover complex operations
update atoms for new features correctly
reorganize feature file structure
decorate sympy methods for usage with Features. Use them for FeatureBin. Update function decoretor - pass scale to it.
implement operations for Linear features
Merge branch 'feature/linear_features_operations' into develop