Input via STDIN for svcrack & svwar

[0xInfection]

Objective:

This PR addresses the following:

• [x] svwar and svcrack now takes in input from stdin using the --dictionary -.
• [x] Other quick bug fixes and stuff.

Output:

A quick output from the tool svwar:

$ maskprocessor '?d?d?d?d' | sipvicious_svwar demo.sipvicious.pro -v -d -
INFO:TakeASip:trying to get self ip .. might take a while
INFO:root:start your engines
INFO:TakeASip:Ok SIP device found
INFO:TakeASip:extension '1000' exists - requires authentication
INFO:TakeASip:extension '1001' exists - requires authentication
INFO:TakeASip:extension '1002' exists - requires authentication
INFO:TakeASip:extension '1003' exists - requires authentication
INFO:TakeASip:extension '1004' exists - requires authentication
INFO:TakeASip:extension '1005' exists - requires authentication
INFO:TakeASip:extension '1006' exists - requires authentication
INFO:TakeASip:extension '1007' exists - requires authentication
INFO:TakeASip:extension '1008' exists - requires authentication
INFO:TakeASip:extension '1009' exists - requires authentication
INFO:TakeASip:extension '1100' exists - requires authentication
INFO:TakeASip:extension '1200' exists - requires authentication
INFO:TakeASip:extension '1300' exists - requires authentication
INFO:TakeASip:extension '1400' exists - requires authentication
INFO:TakeASip:extension '2000' exists - requires authentication
INFO:root:we have 15 extensions
+-----------+----------------+
| Extension | Authentication |
+===========+================+
| 1000      | reqauth        |
+-----------+----------------+
| 1001      | reqauth        |
+-----------+----------------+
| 1002      | reqauth        |
+-----------+----------------+
| 1003      | reqauth        |
+-----------+----------------+
| 1004      | reqauth        |
+-----------+----------------+
| 1005      | reqauth        |
+-----------+----------------+
| 1006      | reqauth        |
+-----------+----------------+
| 1007      | reqauth        |
+-----------+----------------+
| 1008      | reqauth        |
+-----------+----------------+
| 1009      | reqauth        |
+-----------+----------------+
| 1100      | reqauth        |
+-----------+----------------+
| 1200      | reqauth        |
+-----------+----------------+
| 1300      | reqauth        |
+-----------+----------------+
| 1400      | reqauth        |
+-----------+----------------+
| 2000      | reqauth        |
+-----------+----------------+
INFO:root:Total time: 0:01:24.847823

[sandrogauci]

did basic tests - stuff works. Will check a few things later and confirm

[sandrogauci]

thanks @0xInfection !