Create a service to request all active panorama with their sensors as node

[Benvii]

To deal with graphs we need to retreive all active panorama of a campaign and their corrected sensors datas.
We need a service that will request these data thought the panorama_extended view (OpenPathView/OPV_DBRest#53) and a mapper that transform these as "nodes".

Node model is the following :

node
x: number
y: number
z: number
id: string
data: object

Mapping should be the following one :

node	path_node
x	latitude // panorama.corrected_sensors.gps_pos[0]
y: number	longitude // panorama.corrected_sensors.gps_pos[1]
z: number	altitude // panorama.corrected_sensors.gps_pos[2]
id: string	concat ids : "${panorama.id_panorama}-${panorama.id_malette}"
data: object	{ "path_node": {path_node object if it exists, null otherwise}, "panorama": {associated panorama object } }