indexation optimization in slam/spangy.py/spectrum() + automatized colormap & more detailed display in slam/examples/example_spangy.py

[annekerachni]

• In spangy.py:

  • indexation optimization to directly get nlevels

• In _examplespangy.py:

  • added functions to visualize automatically-colored local dominant bands, depending on the set number of bands
  • And also associated colormapped display of gyri or sulci global spectrum