add adaptive greedy algorithm for basis generation #213
This pull request adds a greedy search algorithm with adaptive training set refinement according to
This pull request depends on #212.
This method implements a greedy search with adaptive training set refinement according to Haasdonk, B.; Dihlmann, M. & Ohlberger, M., A training set and multiple bases generation approach for parameterized model reduction based on adaptive grids in parameter space, Math. Comput. Model. Dyn. Syst., 2011, 17, 423-442