Provisioning by option instead of location

reserve_provserv.py

# Current logic for reserving a device by location:
device = hapi.devices.get(server.device_id).json()
device_location = device.get('location')
if location == device_location:
    target = server
    
# The new logic for reserving by option tags, then defaulting to location.
if has_sps_location_tag:
    device = hapi.devices.get(server.device_id).json()
    tag = device.option.tag
    device_location = device.get('location')
    if device_location == tag:
        target = server