password data type redaction should not be limited to UI #3404

The password setting of the modifier property format is described in the Data Types section as "A hint to UIs to obscure input."

Since the OpenAPI Specification is also relevant for backends, the description should be generalized, e.g., "A hint to UIs and backend systems to obscure/redact the value."

An example for the necessity of redacting the value of a password field is in the toString method generated by the openapi-generator tool: OpenAPITools/openapi-generator#16851