Allow using the serial number of a node as an additional matching criteria for the bus_order [3/3]

This introduces a new optional attribute "serial_number" in the interface_maps
of the network barclamp (+ the needed change to make use of that in the crowbar
and deployer barclamps) that can be use as additional matching criteria for
defining the interface order for a certain node. (This is helpful e.g. if two
nodes with the same value for "Product Name" need to have different
interface_map defined)


 chef/data_bags/crowbar/bc-template-network.schema | 1 +
 1 file changed, 1 insertion(+)

Crowbar-Pull-ID: ead8713cdc2ce28d97bab36901b28238e32bb08e

Crowbar-Release: pebbles