Add `IsQuasisimpleGroup`, `IsQuasisimpleCharacterTable`#4653

Merged

fingolfin merged 4 commits intogap-system:masterfrom ThomasBreuer:TB_IsQuasiSimple

Sep 18, 2021

+119-28

Commits on Sep 12, 2021

added IsQuasisimpleGroup, IsQuasisimpleCharacterTable
ThomasBreuer
committed

Commits on Sep 14, 2021

fixed two differences in manual tests
ThomasBreuer
committed

Commits on Sep 18, 2021