Shift centers of mass into clusters in Jackknife/FocusCounter

[tsalo]

Closes None, but this will work well with the recent changes to Nilearn's get_clusters_table that shift centers of mass into clusters.

Changes proposed in this pull request:

• Shift centers of mass of clusters into the nearest within-cluster voxel in the diagnostic tools.
• Replace scipy sub-submodule use (e.g., scipy.ndimage.measurements.label()) with the submodule (scipy.ndimage.label()), per scipy's recommendations.
• Add a License section to docstrings for functions using external code.

[codecov]

Codecov Report

Merging #735 (a054229) into main (44b1011) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #735      +/-   ##
==========================================
+ Coverage   88.91%   88.95%   +0.04%     
==========================================
  Files          40       40              
  Lines        4439     4456      +17     
==========================================
+ Hits         3947     3964      +17     
  Misses        492      492              

Impacted Files	Coverage Δ
nimare/transforms.py	75.71% <ø> (ø)
nimare/diagnostics.py	93.43% <100.00%> (-0.19%)	⬇️
nimare/meta/cbma/base.py	97.10% <100.00%> (ø)
nimare/meta/cbma/mkda.py	98.78% <100.00%> (ø)
nimare/meta/utils.py	95.83% <100.00%> (ø)
nimare/utils.py	94.86% <100.00%> (+0.30%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 44b1011...a054229. Read the comment docs.