Move analysis functionality to brainglobe-utils

[adamltyson]

Part of #73 and requires brainglobe/brainglobe-utils#24 (tests will fail until this is merged & released)

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (ffee651) 82.75% compared to head (c8e8eca) 85.01%.

Files	Patch %	Lines
...rainglobe_workflows/brainmapper/analyse/analyse.py	42.85%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #76      +/-   ##
==========================================
+ Coverage   82.75%   85.01%   +2.26%     
==========================================
  Files          27       26       -1     
  Lines        1577     1448     -129     
==========================================
- Hits         1305     1231      -74     
+ Misses        272      217      -55     

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