Copasi-basico

This release adds a workaround when dealing with the following issues:

* when resolving references from display names for reactions containing ')', these are now correctly found.
* for testing, added function `import_sbml` that optionally can modify the XML before loading it. This function is experimental and might be removed in the future.

This is a bugfix release, renaming the parameter for `run_lyapunov` to `calculate_divergence`.

This release adds initial support for calculating lyapunov exponents and can be used like:

bash
>>> load_example('brusselator')
>>> exponents, sums, divergence = run_lyapunov(num_exponents=2)
>>> print(exponents)
[-0.0007025645113957691, -2.6051942604518477]

This release adds a `set_parameters` function the basico PetabSimulator, with that it will be possible to reevaluate many parameters without requiring a reload.

This release adds support for the new output specifications for scan tasks to `get_scan_settings` and `set_scan_settings`. That way more precise control can be gained as to when output is selected.

This release fixes an issue (56 ) where mapping a number to a reaction parameter would only work if that parameter was in the first position. Additionally, time course settings are now restored when retrieving simulation results for experiments, issue (54).