Bruker h5ebsd format writer, so we can easily use AstroEBSD

[hakonanes]

Is your feature request related to a problem? Please describe.

Would be nice to be able to write patterns in an EBSD object to Bruker's h5ebsd format. This would enable e.g. easy reading of patterns into AstroEBSD.

We already have an h5ebsd writer in our own format, and since we already have a reader of patterns from Bruker's h5ebsd format, this shouldn't be too difficult.

Describe the solution you'd like

Specify which h5ebsd format to write to:

>>> s
<EBSD, title: , dimensions: (200, 149|60, 60)>
>>> s.save("bruker_format.h5", h5ebsd_format="bruker")

These patterns should then be readable by:

• AstroEBSD
• EMsoft

Additional context

This would fix this issue ExpMicroMech/AstroEBSD#1.

[hakonanes]

In an effort to focus the issues on current interests, this is closed but can be opened at a later time.