Initial commit for v1.0 using mitmproxy instead of twisted

Added a plugin system to Net-Creds so you can now add your own parsers,
api hook names might change between now and the offcial release
(will submit a PR to the original repo once completed)

The main MITM HTTP Proxy now uses mitmproxy which is a big deal, cuts
the code down by an insane amount, no more twisted! yay!

Basic plugin have been re-wrote for the new proxy engine

Since we are using mitmproxy we have out of the box support for SSL/TLS!

parsers/parser.py

@@ -0,0 +1,18 @@
+class Parser(object):
+    name = 'Parser Name'
+
+    def __init__(self, logger):
+        self.logger = logger
+        self.logger.extra['parser'] = self.name
+
+    def TCP_Parser(self, payload, src_ip_port, dst_ip_port):
+        '''
+            This function is called on every TCP packet
+        '''
+        pass
+
+    def UDP_Parser(self, payload, src_ip_port, dst_ip_port):
+        '''
+            This function is called on every UDP packet
+        '''
+        pass