added logic to make the creation of networks (IPv4 only) validation a bit smarter:   - detects if the cidr is already in use   - detects if any existing smaller networks are within the range of requested cidr(s)   - detects if splitting a supernet into # of num_networks && network_size will fit   - detects if requested cidr(s) are within range of already existing supernet (larger cidr).
added logic to make the creation of networks (IPv4 only) validation a bit smarter:
  - detects if the cidr is already in use
  - detects if any existing smaller networks are within the range of requested cidr(s)
  - detects if splitting a supernet into # of num_networks && network_size will fit
  - detects if requested cidr(s) are within range of already existing supernet (larger cidr).

IPv6 logic remains intact yet had not been improved by this code.
n0ano/gantt,n0ano/gantt