New interpolation schemes, modified filtering, and added tests

[orebas]

This PR combines a few new features, and is definitely a breaking change.

1. Instead of iterating over different degree of rational interpolant, the Trefethen-Nakatsukasa AAA algorithm is used to find one good interpolant (ideally of lowest reasonable degree.) Also added are Floater Hormann interpolation and a simple Fourier based interpolation.
2. Added a precompile workload, so the precompile step is much longer but "Using ParameterEstimation" is about 4x faster on my computer.
3. Added a number of parameter recovery tests, hope to add more in the future.
4. Changed the filtering scheme; now all potentially reasonable sets of parameters are returned, however;
5. Added support for filtering out parameter and initial conditions outside of a constraint set.
6. A small number of bug fixes here and there.