Allow setting IPblock status #260
Description
Currently, it's only possible to set "Static" (via various allocate options, get ip etc), or set the status to "Available" by freeing the IP.
Status "Reserved" only gets set when adding a subnet to a pool, which currently reserves
- Network address
- Broadcast address
- .0 and .255 in networks larger than /24
https://github.com/1and1/dim/blob/master/dim/dim/rpc.py#L1179-L1183
Having it not reserve those IPs is currently broken, see #220
As there's an API endpoint that allows to "free" "Reserved" IPs via a specific flag, it's a good idea to allow setting at least "Reserved". Most trivial use-case would be reserving an IP again that was freed by mistake.