rest: extend /repository/addv1.2.5

POST /repository/add checks validity of the repository ip address
specified in the request payload.

/repository/add can optionally receive a center id parameter inside its
request payload. For backward compatibility, the default center id (1)
is used if no center is received inside the request payload.

POST /repository/add returns a JSON response payload containing relevant
fields from the inserted repository.

$ curl 	-D-
	\ -X POST
	\ -H "Authorization: a0e9ab768cbe93dab5b1998e952bcdb7"
  	\ --json '{"name": "helloworld", "ip": "192.168.21.21a", "center": 2}'
	\ localhost:8888/repository/add
HTTP/1.1 400 Bad Request
Content-Length: 0

$ curl 	-D-
	\ -X POST
	\ -H "Authorization: a0e9ab768cbe93dab5b1998e952bcdb7"
  	\ --json '{"name": "helloworld", "ip": "192.168.21.21a", "center": 2}'
	\ localhost:8888/repository/add
HTTP/1.1 200 OK
Content-Length: 54

{"id": 7, "ip": "192.168.21.21", "name": "helloworld"}

0 files changed, 0 insertions, 0 deletions