Specify route.spec.host if the name is greater than 63 characters

[alaypatel07]

Describe the bug
Route name should not be longer than 63 characters otherwise it will not get accepted

Steps to reproduce
Pass a namespaced name that is longer than 63 characters to the route.New() constructor

Expected behavior
Routes names should be validated. If the route names is greater than 63 chars, the spec.host should be specified that should be unique for this route as well as each laber should be smaller than 63 characters in ..

Actual results
The first label gets derivied from the name of the route, if the name is longer than 63 characters, the routes will never get admitted.

[alaypatel07]

/assign