Java Parse IP Range

This example parses the targets ip/range using different approach and return TreeSet with this range.

Accepts:

1. IPv4 address or octet range addressing "192.168.0.1" or "192.168.0-255.1-254" or "192.168.1.1,3,7" or even something crazy like this: *-5,8,10-12,250-*.*-5,8,10-12,250-*.*-5,8,10-12,250-*.*-5,8,10-12,250-*

TO DO LIST

1. implement errors for wrong ranges (numbers less more then 255)
2. implement CIDR notation
3. implement crazy ranges with " - " like "very complex range 1" - "very complex range 2"

PROBLEMS: if you would like to parse whole internet ... (~ 4,22 billions) you go into limitations of TreeSet (~2,147 billions) as far as I know at the moment. At the moment i don't know how to solve it :)