Add "queues" REST API to fetch list of queues

URL: /ws/v1/partition/<partition>/queues
Method: GET
Desc: Returns all queues (including all childrens in the hierarchy) within the <partition> context.
Query Params:
?name=root.default
Filter the results using “fully qualified queue path name” by doing exact match.
?state=Active
Filter the results using “state” of the queue. Allowed states are "Active", "Draining", "Stopped”
is_leaf=true or false.
Filter the results to show only leaf queues. By default, it is false.
is_managed=true or false
Filter the results to show only managed queues. By default, it is false.