Combine analyses in Studyset

[JulioAPeraza]

Closes None.

Changes proposed in this pull request:

• This PR addresses issue Create Transformer to combine coordinates from different experiments in the same studies #728 only for NIMADS' Studyset object.

[JulioAPeraza]

Note, combine_analyses() only works after setting an annotation and filtering the analyses with the note "include"=False.

[codecov]

Codecov Report

Patch coverage: 98.32% and project coverage change: +0.54 🎉

Comparison is base (fccf509) 87.82% compared to head (8206c48) 88.36%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #810      +/-   ##
==========================================
+ Coverage   87.82%   88.36%   +0.54%     
==========================================
  Files          43       46       +3     
  Lines        5643     5940     +297     
==========================================
+ Hits         4956     5249     +293     
- Misses        687      691       +4     

Impacted Files	Coverage Δ
nimare/__init__.py	100.00% <ø> (ø)
nimare/diagnostics.py	100.00% <ø> (ø)
nimare/reports/figures.py	97.95% <97.95%> (ø)
nimare/reports/base.py	98.36% <98.36%> (ø)
nimare/nimads.py	70.94% <100.00%> (+2.12%)	⬆️
nimare/reports/__init__.py	100.00% <100.00%> (ø)
nimare/workflows/cbma.py	100.00% <100.00%> (ø)

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.

[jdkent]

LGTM! thanks!