Remove method objects3d.get_objects_within_intensity

[rohangirishrao]

Remove method as it exists in the Image3D suite, refer: https://framagit.org/mcib3d/mcib3d-core/-/blob/master/src/main/java/mcib3d/geom/Objects3DPopulation.java?ref_type=heads#L1520

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 25%. Comparing base (ce66eef) to head (b5c990c).
⚠️ Report is 12 commits behind head on devel.

Additional details and impacted files

@@         Coverage Diff          @@
##           devel   #123   +/-   ##
====================================
- Coverage     25%    25%   -0%     
====================================
  Files         25     25           
  Lines       1711   1712    +1     
====================================
  Hits         421    421           
- Misses      1290   1291    +1     

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[ehrenfeu]

IIRC, this method was introduced by @lguerard for a reason, as it does more than simply calling Objects3DPopulation.

Requests:

• Discuss / approve with Laurent that it's okay to remove it.
• Add it to the changelog as this is a breaking change.
• Explain what to use instead (and how).

[ehrenfeu]

Okay, obviously (and once again) I overlooked the related issue (#114) as it wasn't linked in the description - please avoid having issue numbers in new issue titles as my brain always gets tricked into thinking that number (in the title) is the number of this very issue / PR (not the referring one)... 🤦🏼

Instead, put the reference of the issue into the description and add it in the Development section on the right hand side.

Thanks! 🤗