Committing in a submodule
finished L0RL2 algorithm, getting alpha still does not work.
alpha values still not correct, and added attempt to find optimimum alpha values by gradient descent..still buggy. added more methods for nuEpsilon. HomotopyContinuation still not giving expected results.
changed alpha fixed to use a different start value.
changed start of computation of isnr to iteration 0, not iteration 1
added changes to the solver to produce the 8.7% l2e which included a manual fix for adjusting the high-frequency subband regularization parameters. this should be something added into the continuation code, not the solver code, in the future.
revised the computation of S to be common for real an imaginary parts in solveCSMagPhase, needs cleaning-up.
added another exponential update rule