feat(frontends/lean/structure_cmd): allow implicitness infer annotation and parameters in field declaration
feat(frontends/lean/structure_cmd): allow implicitness infer annotation and parameters in field declaration

Kha/lean,digama0/lean,fpvandoorn/lean,leanprover/lean,digama0/lean,Kha/lean,leanprover/lean,dselsam/lean,dselsam/lean,leodemoura/lean,dselsam/lean,leodemoura/lean,fpvandoorn/lean,leodemoura/lean,fpvandoorn/lean,dselsam/lean,leanprover-community/lean,leanprover-community/lean,dselsam/lean,Kha/lean,fpvandoorn/lean,leodemoura/lean,fpvandoorn/lean,digama0/lean,leanprover/lean,digama0/lean,digama0/lean,dselsam/lean,leanprover/lean,leodemoura/lean,leanprover/lean,leodemoura/lean,leanprover-community/lean,Kha/lean,leanprover-community/lean,leanprover/lean,leanprover-community/lean,digama0/lean,fpvandoorn/lean,Kha/lean,leanprover-community/lean,Kha/lean