1875 add i10 1 high field magnet devices

[Relm-Arrowny]

Fixes #ISSUE

Instructions to reviewer on how to test:

1. Do thing x
2. Confirm thing y happens

Checks for reviewer

• Would the PR title make sense to a scientist on a set of release notes
• If a new device has been added does it follow the standards
• If changing the API for a pre-existing device, ensure that any beamlines using this device have updated their Bluesky plans accordingly
• Have the connection tests for the relevant beamline(s) been run via dodal connect ${BEAMLINE}

[codecov]

Codecov Report

❌ Patch coverage is 9.75610% with 37 lines in your changes missing coverage. Please review.
✅ Project coverage is 98.74%. Comparing base (dffe1f8) to head (ac90851).

Files with missing lines	Patch %	Lines
src/dodal/devices/i10_1/scaler_cards.py	0.00%	9 Missing ⚠️
src/dodal/devices/i10_1/electromagnet/magnet.py	0.00%	8 Missing ⚠️
src/dodal/devices/i10_1/electromagnet/stages.py	0.00%	8 Missing ⚠️
...c/dodal/devices/i10_1/electromagnet/current_amp.py	0.00%	7 Missing ⚠️
src/dodal/devices/i10_1/__init__.py	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1876      +/-   ##
==========================================
- Coverage   99.05%   98.74%   -0.32%     
==========================================
  Files         312      317       +5     
  Lines       11749    11790      +41     
==========================================
+ Hits        11638    11642       +4     
- Misses        111      148      +37     

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[oliwenmandiamond]

Your dodal.devices.i10 will need to be moved to dodal.devices.beamlines.i10