Add Jupyter notebook for SVS Support

[gigony]

• Update notebooks/Welcome.ipynb
• Add notebooks/Supporting_Aperio_SVS_Format.ipynb to show loading Aperio SVS images

[jakirkham]

rerun tests

[jakirkham]

There's some commented code in the notebook like

#         start_loc_data = [(sx, sy)
...

Should we drop that?

Edit: Also wonder if we should break the Experiment Code section out into a script

[gigony]

There's some commented code in the notebook like

#         start_loc_data = [(sx, sy)
...

Should we drop that?

Edit: Also wonder if we should break the Experiment Code section out into a script

Good idea! Thank you for the suggestion. Moved as scripts and removed unnecessary comments.

[jakirkham]

@gpucibot merge