matthieumeo/pycsou: Pycsou 1.0.6

Automatic computation of upper bounds on structured operators' Lipscitz constants Updated documentation New class for quadratic forms Fix the implementation of dense/sparse Khatri-Rao product Memory-efficient implementation of Khatri-Rao product when the operators are dense Added method for computing tanspose of a LinearOperator; Added classes for constructing block/block-diagonal LinearOperators; Added classes for Kronecker sums/products and Khatri-Rao products of LinearOperators Requirement on Python 3.6 is now >= rather than strict. Added method apply_along_axis to class Map for batch evaluation Fix bug causing repeated entries in Pycsou's API toc Fix bug in doctest of L21nor