MapperComplex scikit-learn interfaces does not respect BaseEstimator requirements

[VincentRouvreau]

Description

For GridSearchCV (cf. https://scikit-learn.org/stable/modules/generated/sklearn.base.BaseEstimator.html ), MapperComplex scikit-learn interfaces should be able to perform get_params.

Behaviour

from gudhi.cover_complex import MapperComplex
MapperComplex().get_params()
# E           AttributeError: 'MapperComplex' object has no attribute 'colors'

Expected results

MapperComplex().get_params() shall work.