Formable

Fixed

- Bug fix in `LoadResponseSet.to_dict` if an associated yield function was not fitted.

Added

- Add ability to specify fitting bounds and other optimisation parameters in `YieldFunction.from_fit` and `LoadResponseSet.fit_yield_function`.

Changed

- `LoadResponseSet.yield_functions` attribute renamed `LoadResponseSet.fitted_yield_functions`.

Changed

- Do not modify input dict to `levenberg_marquardt.LMFitter.from_dict`.
- Fix bug in `TensileTest.show()` stress scale.

Added

- Add `to_dict` and `from_dict` methods to `LoadResponseSet`.

Added

- Add `LMFitter.from_dict`

Fixed

- Add `single_crystal_parameters` to returned dict of `LMFitter.to_dict`.

Fixed

- Set float values in `get_new_single_crystal_params`.

Added

- Add new module, `levenberg_marquardt` for fitting single crystal parameters.