Crispy

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* Added support for M4,5 (3d) XAS calculations for 4f elements.
* Added support for XMCD and X(M)LD calculations.
* Added support for polarization dependence.
* Spectra are shifted by the experimental edge energy.
* Updated core-hole lifetimes.
* Added energy-dependent broadening for L2,3 (2p) and M4,5 (3d) edges.

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* Added support for L2,3 (2p) XAS, L2,3-M4,5 (2p3d) and L2,3-N4,5 (2p4d) RIXS
calculations for 4f elements.
* Added support for L2,3 (2p) XAS calculations for 4d and 5d elements.
* Added support for K (1s) XAS calculations for C3v and Td symmetries
including 3d-4p hybridization for 3d elements.
* Added interactive Gaussian broadening for 1D and 2D spectra using FFT.
* The number of initial Hamiltonian states is now determined automatically.
* The Quanty module was refactored.

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* Added support for K-L2,3 (1s2p) and L2,3-M4,5 (2p3d) RIXS calculations.
* Added a logging console displaying the output of the calculation.
* Added context menu for the calculations panel.
* The calculations can now be serialized.

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The first release of Crispy:

* Added support for the calculation of core-level spectra using Quanty,
including:

* K (1s), L1 (2s), L2,3 (2p), M1 (3s), M2,3 (3p) XAS for transition metals
* Oh and D4h symmetries
* crystal field and ligand field models

* Added interactive plotting of the results.
* Added an abstract list model and tree model to display/modify the input
parameters.