DEMO: Added tomo demo fldr structure and seg and crop demo nb

This is an initial commit for the end-to-end segmentation
demonstration and the transformation cropping demonstration. Both demos
are currently incomplete.

Author: Gabriel Iltis

demos/tomography/.ipynb_checkpoints/NSLS-II Segmentation workflow design-checkpoint.ipynb

@@ -0,0 +1,6 @@
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