Add i06-1 magnets

[oliwenmandiamond]

Fixes #2120

Instructions to reviewer on how to test:

1. Check implementations make sense
2. Check tests coverage is sufficient
3. Check doc strings for devices make sense
4. Check dodal connect i06-1

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

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.18%. Comparing base (3b77d81) to head (70175a5).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2115      +/-   ##
==========================================
+ Coverage   99.16%   99.18%   +0.02%     
==========================================
  Files         354      360       +6     
  Lines       13842    14221     +379     
==========================================
+ Hits        13726    14105     +379     
  Misses        116      116              

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[Relm-Arrowny]

I gone through it roughly, I have a few questions

[Relm-Arrowny]

Overall this is looking super solid—I just have one question regarding moving StandardMovable to the controller level, along with a couple of small edge-case notes.

[Relm-Arrowny]

We could make use of annotations here in line with everything else:

Suggested change

	def to_spherical(self) -> "MagnetSphericalPosition":
	def to_spherical(self) -> MagnetSphericalPosition:

with

from __future__ import annotations

[Relm-Arrowny]

We are still moving all the axis to negative one by one first, I thank we could at least move all negative in one step?
It is worth checking if we actually need to move one by one in negative direction, I think the idea of sphere mode with lower vector limit is to allow async the movement and speed for all 3 axis so that we can keep the field direction.
We can probably make it in a new issue as spherical is actually out of scope,