Too Many Open Files

[Hackndo]

Describe the bug
When executing lsassy on more than 256 IP, there are too many forks. Need to paginate the execution.

Traceback (most recent call last):
  File "/home/wilfried/.local/bin/lsassy", line 10, in <module>
    sys.exit(run())
  File "/home/wilfried/.local/lib/python3.7/site-packages/lsassy/core.py", line 226, in run
    job.start()
  File "/usr/lib/python3.7/multiprocessing/process.py", line 112, in start
    self._popen = self._Popen(self)
  File "/usr/lib/python3.7/multiprocessing/context.py", line 223, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  File "/usr/lib/python3.7/multiprocessing/context.py", line 277, in _Popen
    return Popen(process_obj)
  File "/usr/lib/python3.7/multiprocessing/popen_fork.py", line 20, in __init__
    self._launch(process_obj)
  File "/usr/lib/python3.7/multiprocessing/popen_fork.py", line 69, in _launch
    parent_r, child_w = os.pipe()
OSError: [Errno 24] Too many open files