Observe/document progress on cvxpy implementation

[tschm]

@phschiele please keep us in the loop here. Exciting stuff...

[tschm]

Canonical map explained on page 14 of https://web.stanford.edu/~boyd/papers/pdf/diff_cvxpy.pdf

[tschm]

helpful test implemented here https://github.com/cvxpy/cvxpy/blob/9d098d08c759a15245da5b332c55b8f90288bb09/cvxpy/tests/test_python_backends.py#L125

[phschiele]

Progress of new backend tracked here: Backend Improvements

[tschm]

Good progress, first prototype may land in two weeks