Increased test coverage, solved a number of minor bugs and memory leaks.

Implementation of new taut-string methods, including the classic taut-string method and the hybrid taut string-method.

Solves issues arising when using integer data in the solvers

The library now can be used in Python!

Faster 1D TV method bases in an optimized taut-string approach.
Douglas Rachford reflections method for 2D TV, faster than the original projections approach.
1D and 2D weighted TV solvers, based on a weighted 1D taut-string method.