v2.1.0

This version of PanGenie implements a much more efficient way of computing Forward- and Backward probabilities. It reduces the complexity of the Forward-Backward computations from quartic to quadratic in the number of haplotypes. In addition, the implementation of the UniqueKmers object was slightly changed which reduced memory usage drastically. As a result, this version of PanGenie runs much faster than the previous versions and additionally uses less memory, while the results themselves are the same.