test(tests/lean/slow): add self contained path_groupoids test file
test(tests/lean/slow): add self contained path_groupoids test file

Signed-off-by: Leonardo de Moura <7610bae85f2b530654cc716772f1fe653373e892@microsoft.com>

htzh/lean,leanprover-community/lean,dselsam/lean,digama0/lean,johoelzl/lean,htzh/lean,soonhokong/lean-windows,soonhokong/lean-osx,fpvandoorn/lean,leodemoura/lean,soonhokong/lean-windows,htzh/lean,soonhokong/lean-windows,soonhokong/lean-osx,c-cube/lean,avigad/lean,fgdorais/lean,Kha/lean,fpvandoorn/lean,leodemoura/lean,c-cube/lean,UlrikBuchholtz/lean,fpvandoorn/lean,leanprover/lean,fgdorais/lean,javra/lean,leodemoura/lean,soonhokong/lean,avigad/lean,rlewis1988/lean,soonhokong/lean-windows,soonhokong/lean,c-cube/lean,sp3ctum/lean,Kha/lean,johoelzl/lean,digama0/lean,avigad/lean,UlrikBuchholtz/lean,rlewis1988/lean,eigengrau/lean,javra/lean,leodemoura/lean,eigengrau/lean,Kha/lean,avigad/lean,leanprover/lean,digama0/lean,soonhokong/lean,levnach/lean,fpvandoorn/lean,johoelzl/lean,sp3ctum/lean,eigengrau/lean,soonhokong/lean-windows,Kha/lean,dselsam/lean,eigengrau/lean,fgdorais/lean,fpvandoorn/lean2,rlewis1988/lean,johoelzl/lean,leanprover/lean,eigengrau/lean,sp3ctum/lean,soonhokong/lean,johoelzl/lean,rlewis1988/lean,fgdorais/lean,digama0/lean,dselsam/lean,avigad/lean,c-cube/lean,levnach/lean,leanprover/lean,UlrikBuchholtz/lean,leanprover-community/lean,javra/lean,dselsam/lean,levnach/lean,leodemoura/lean,digama0/lean,fpvandoorn/lean2,rlewis1988/lean,digama0/lean,leodemoura/lean,fgdorais/lean,c-cube/lean,dselsam/lean,Kha/lean,Kha/lean,avigad/lean,leanprover-community/lean,rlewis1988/lean,soonhokong/lean-osx,levnach/lean,fpvandoorn/lean,fgdorais/lean,soonhokong/lean-osx,leanprover-community/lean,dselsam/lean,javra/lean,htzh/lean,sp3ctum/lean,fpvandoorn/lean2,levnach/lean,fpvandoorn/lean2,soonhokong/lean-osx,fpvandoorn/lean,leanprover-community/lean,sp3ctum/lean,soonhokong/lean,UlrikBuchholtz/lean,johoelzl/lean,leanprover-community/lean,javra/lean,UlrikBuchholtz/lean,htzh/lean,fpvandoorn/lean2,leanprover/lean,leanprover/lean