data explore interface

[parosen]

A number of innovations would simplify the entry of image characteristics. This would entice a broader range of users.

1. allow customization of the layout of the data type selection interface.
2. merge isce2 with native, and allow color table specification for each data type, rather than hardcoding to int, slc, unw.
3. rename native to something more familiar like "flat"
4. rename nisar to nisar-h5
5. swap samples and lines order for flat files
6. run a calculation to determine the image size of a flat file and offer a set of selections
7. pre populate the samples/lines fields
8. remember last flat file dimension and prepopulate, since often multiple files are read in of identical dimensions
9. automatically generate a unique nickname to prepopulate. Perhaps just use the filename

[parosen]

dem tiff files do not display using the gdal type.
error message is:
!! 'NoneType' object has no attribute 'pyre_tip'

[aivazis]

let's schedule a brief meeting to go over this