Avoid use of GAP namespace features

[fingolfin]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 31.97%. Comparing base (162e017) to head (a6e2b07).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
lib/ReducedStartsets.gi	0.00%	1 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@ ## master #7 +/- ## ======================================= Coverage 31.97% 31.97% ======================================= Files 19 19 Lines 3825 3825 ======================================= Hits 1223 1223 Misses 2602 2602 

Files with missing lines	Coverage Δ
lib/plane_isomorphisms.gd	100.00% <100.00%> (ø)
lib/plane_isomorphisms.gi	11.12% <100.00%> (ø)
lib/sigs.gd	100.00% <100.00%> (ø)
lib/sigs.gi	13.68% <ø> (ø)
lib/ReducedStartsets.gi	12.94% <0.00%> (ø)

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