feat(hott) add carrier and hom set of rezk completion
feat(hott) add carrier and hom set of rezk completion

fpvandoorn/lean2,javra/lean,fpvandoorn/lean2,fpvandoorn/lean2,UlrikBuchholtz/lean,fpvandoorn/lean2,soonhokong/lean,soonhokong/lean,UlrikBuchholtz/lean,soonhokong/lean,fpvandoorn/lean2,javra/lean,javra/lean,soonhokong/lean,javra/lean,UlrikBuchholtz/lean,soonhokong/lean,UlrikBuchholtz/lean,javra/lean,UlrikBuchholtz/lean