* Added ``pyproximal.proximal.L0Ball``, ``pyproximal.proximal.L1Ball``,
``pyproximal.proximal.L21_plus_L1``, ``pyproximal.proximal.Nuclear``,
``pyproximal.proximal.NuclearBall``, and ``pyproximal.proximal.Nonlinear``
operators
* Added ``pyproximal.optimization.primal.TwIST`` solver
* Added `acceleration` in
``pyproximal.optimization.primal.AcceleratedProximalGradient`` solver
* Added classes standard deviation in
``pyproximal.optimization.segmentation.Segment`` solver
* Added `chain` method ``pyproximal.ProxOperator``
* Fix ``pyproximal.proximal.Orthogonal`` by introducing `alpha`
in the proximal evaluation