- Split schema factory for request / response / common types - Fix overlapping types "string" and "regexp" to be just one string type - If `oneOf` or `allOf` OAS schemas have one item, just use that item's type.
- Split schema factory for request / response / common types - Fix overlapping types "string" and "regexp" to be just one string type - If `oneOf` or `allOf` OAS schemas have one item, just use that item's type.