SFS Reader Origins and license.

[imikejackson]

Describe the bug

Could you provide background information as to how the SFS Reader was developed? The SFS Format is a commercial product from AidAim software? Did AidAim license the format to HyperSpy for GPLv3 use under Python?

To Reproduce

Steps to reproduce the behavior:

Minimum working example of code

Expected behavior

A clear and concise description of what you expected to happen.

Python environement:

• HyperSpy version: 1.x.x
• Python version: 3.x

Additional context

We would like to start using HyperSpy and add more features to the Bruker.py file (EBSD data extraction specifically) but we want to be sure of the correct licensing issues. I looked back through the git commit history and the bruker.py file (after following file renames) just comes in one commit with no other comments.