Copasi-basico

This release fixes an issue with `load_model_from_string`, where specific SBML models were mistakenly imported as COPASI models.

This release fixes an issue where returning simulation results from `run_time_course` could not be obtained if multiple model elements were named `Time`. If this issue is encountered:

* basico will no longer try to set the index, and instead issue a warning `Duplicate column names in time series consider using use_sbml_id=True, or running ensure_unique_names()`
* the new function `ensure_unique_names()` appends a count to the name ensuring uniqueness

This fixes 60 .

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.