Add some functions

[giuliao27]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 24.35897% with 59 lines in your changes missing coverage. Please review.
✅ Project coverage is 44.50%. Comparing base (5438a0d) to head (d294bbc).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...ib/Orru/HAP_TransversalCongruenceSubgroups_SL3Z.gi	1.92%	51 Missing ⚠️
lib/Orru/subgroups.gi	60.00%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #148      +/-   ##
==========================================
- Coverage   44.52%   44.50%   -0.03%     
==========================================
  Files         353      354       +1     
  Lines       64809    64886      +77     
==========================================
+ Hits        28859    28877      +18     
- Misses      35950    36009      +59     

Files with missing lines	Coverage Δ
lib/Orru/decsOrru.gd	90.47% <100.00%> (+2.24%)	⬆️
lib/Orru/initOrru.gi	100.00% <100.00%> (ø)
lib/Orru/subgroups.gi	15.59% <60.00%> (+5.35%)	⬆️
...ib/Orru/HAP_TransversalCongruenceSubgroups_SL3Z.gi	1.92% <1.92%> (ø)

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.