Changes to Search EDINET companies

added the non-success response with the status 500

added the optional property meta/stale_since to the response with the 200 status

added the optional property meta/data_age_days to the response with the 200 status

added the optional property meta/notes to the response with the 200 status

added the optional property meta/period to the response with the 200 status

the response property data/items/edinet_code became optional for the status 200

the response property data/items/industry became optional for the status 200

the response property data/items/is_listed became optional for the status 200

the response property data/items/name became optional for the status 200

the response property data/items/name_en became optional for the status 200

the response property data/items/ticker became optional for the status 200

response property data/items/edinet_code list-of-types was widened by adding types null to media type application/json of response 200

response property data/items/industry list-of-types was widened by adding types null to media type application/json of response 200

response property data/items/is_listed list-of-types was widened by adding types null to media type application/json of response 200

response property data/items/name list-of-types was widened by adding types null to media type application/json of response 200

response property data/items/name_en list-of-types was widened by adding types null to media type application/json of response 200

response property data/items/ticker list-of-types was widened by adding types null to media type application/json of response 200

added the optional property code to the response with the 401 status

added the optional property code to the response with the 429 status

added the optional property code to the response with the 503 status

added the optional property hint to the response with the 401 status

added the optional property hint to the response with the 429 status

added the optional property hint to the response with the 503 status

added the optional property plan to the response with the 401 status

added the optional property plan to the response with the 429 status

added the optional property plan to the response with the 503 status

added the optional property reason to the response with the 401 status

added the optional property reason to the response with the 429 status

added the optional property reason to the response with the 503 status