xPlotter inherit Figure and renamed xFigure
{Spectrum,Molecule}Mpl renamed inherit common MplCanvas
handle resize and draw in MplCanvas
move background handling to MplCanvas
remove redundant _animated list
Make sure figure has 'ax' attr
*Figure are members of MainWindow
Call figures directly
remove SpectrumData.draw function
Remove obsolete SpectrumCanvas class
remove MoleculeCanvas.setMolecule
move plot_molecule after load
remove obsolete MoleculeCanvas class
Use designer ui file for the GUI
Handle spectrum index (red line) in QVibeplot
Remove broken blitting code