Adding base class for HxrDiffractometer

[c-tsoi]

Description

Adding base class for HxrDiffractometer, this class will ask the user to input the prefix HXR:GON:MMS: and it has the motion stages hardcoded.

Motivation and Context

This change allows us to control the hxr diffractometer stages using python.

How Has This Been Tested?

I was able to connect to the PVs and I have done motion test to the stages.

Where Has This Been Documented?

Pre-merge checklist

• Code works interactively
• Code contains descriptive docstrings, including context and API
• New/changed functions and methods are covered in the test suite where possible
• Test suite passes locally
• Test suite passes on GitHub Actions
• Ran docs/pre-release-notes.sh and created a pre-release documentation page
• Pre-release docs include context, functional descriptions, and contributors as appropriate

[tangkong]

I think the lakeshore file was removed a while ago. Your branch is a bit out of date, we should rebase or merge the master into this branch.

Let me know if you need help with this

[ZLLentz]

I think the lakeshore was never part of pcdsdevices, there's a super old issue to add one and I can't find any point in time where we completed the task (#826). The file is new to me at least. Probably these should be split into two PRs, or if that is prohibitive we can do a 2-in-1 with some updated documentation.

[tangkong]

We sorted this out offline, Christian will be splitting this up into two PRs, and we rebased this one 👍

[vespos]

Please fix the mapping and add the pre-release notes etc

[vespos]

LGTM!

[ZLLentz]

I think this still needs pre-release notes

[c-tsoi]

I think this still needs pre-release notes

@ZLLentz done!

[ZLLentz]

You gotta credit yourself tho, you made the thing