Error pages

There are 12 default error pages that have been implemented in sakyum. These error pages include:

Error page of 400 for bad request

Error page of 401 for unauthorized

Error page of 403 for forbidden

Error page of 404 for not found

Error page of 406 for ot acceptable

Error page of 415 for unsupported media type

Error page of 429 for too many requests

Error page of 500 for internal server error

Error page of 501 for not implemented

Error page of 502 for bad gateway

Error page of 503 for service unavailable

Error page of 504 for gateway timeout