revised actor crossed modules

[cdwensley]

Extensive changes due to using a smaller permutation representation for Whitehead group.

[codecov]

Codecov Report

Attention: Patch coverage is 89.81481% with 22 lines in your changes missing coverage. Please review.

Project coverage is 78.75%. Comparing base (6c62523) to head (ee0ccdc).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
lib/gp2act.gi	85.71%	17 Missing ⚠️
lib/gp2up.gi	95.31%	3 Missing ⚠️
lib/gp2obj.gi	66.66%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #146      +/-   ##
==========================================
+ Coverage   78.63%   78.75%   +0.11%     
==========================================
  Files          41       41              
  Lines       14076    14189     +113     
==========================================
+ Hits        11069    11174     +105     
- Misses       3007     3015       +8     

Files with missing lines	Coverage Δ
lib/gp2act.gd	100.00% <100.00%> (ø)
lib/gp2up.gd	100.00% <100.00%> (ø)
lib/gp3map.gi	60.82% <ø> (ø)
lib/gp3obj.gi	81.00% <100.00%> (+0.03%)	⬆️
lib/isoclinic.gi	89.06% <100.00%> (ø)
lib/gp2obj.gi	86.41% <66.66%> (+0.09%)	⬆️
lib/gp2up.gi	94.92% <95.31%> (+4.56%)	⬆️
lib/gp2act.gi	91.80% <85.71%> (-1.68%)	⬇️

... and 2 files with indirect coverage changes