1. Proposed title of this feature request
Possibility to define label(s) for route to work with router sharding

2. What is the nature and description of the request?
Follwing CRW-1022 it would also be required to add labels to the route created by CodeReady Workspace Operator to make it work with router sharing in OpenShift Container Platform (Router Sharding). As it's possible that specific routes can only be exposed on specific router this functionality is key.

3. Why does the customer need this? (List the business requirements here)
Customers do rely on route customization with regards to host and thus additional requirements are raised as certain routes shall only be exposed on specific routers, using sharing. In order to make that work, the route needs to have specific labels added and this therefore need to be controlled by the Operator to have it properly in place.

4. How would the customer like to achieve this? (List the functional requirements here)
Expose a field to define labels for the route which are being applied when creating the route and then can be used for router sharing scenario

5. For each functional requirement listed, specify how Red Hat and the customer can test to confirm the requirement is successfully implemented.
One the proper label is applied on the route, verify that it is exposed on the correct router (based on the sharing configuration)