Need option to bind write_prometheus plugin to IP address

[PeterGilroy]

When running mcac in a test environment with multiple Cassandra nodes per system there is no way currently to define the IP address that the write_prometheus plugin uses to bind to.
Different IP ports can be used for each node.

The functionality was added to collectd via:
collectd/collectd#2173

This option does not work with the collectd version included with mcac.
Can this functionality be added to the collectd version shipped with mcac?

See that there is a related Issue for updating the collectd version:
#54