Added fix for singular spec dim

BEPS import statement updates

Python 3.8 SyntaxWarning updates

This will need to be incorporated in the next iteration of px, but it needs more generalization before this happens (the combined analytics does not yet work for multiple images of the same composition).

import bugs in plot_svd

Version increment

Saving to new files will break visualization routines. This is now noted.

interactive visualization for loop fit parameters was broken; here we have fixed it (it was an indexing issue)

Updated to account for changes in indexing with newer USID versions

importing sidpy

remove tests

Importing sidpy instead of pyUSID where appropriate

Preventing tests folder from directly appearing in site-packages

Thank you @kevinsmia1939 and @bnavigator

Fix the same as pyUSID based on bnavigator comment. Also remove Nose.

Adding cost function minimization to BE SHO fitting

Fixed bugs in import statements arising in cordoning of region references funcs in pyUSID

Now with additional feature - it actually works

Not writing region references anymore for BE

Verified that SHO and loop fitting work without region references

Patching the LabviewH5Patcher