Add an example for PRs that don't have anything to prove functionality

Some module submissions don't have a pcap, screenshot/video or anything
to prove the module is actually functional or not, because often due to
the author not having the test box anymore, or unable to share info
because of their NDA. We nee a way to prove the module runs by basically
simulating the vulnerable environment live, and this is the answer to that.

This test module is specifically for the cisco_asa_asdm.rb, but future
PRs with the same scenario can also borrow the same idea.
Oops, I didn't even catch this
Add module for CVE-2013-5065
Modify description
Favor unless over if not and add reference
Dont fail_with on check
Fix os detection
Create a new process to host the final payload
Restore vprint_error message
Add railgun definitions for local exploit relevant functions.
Land #2755 - Microsoft Windows ndproxy.sys Local Privilege Escalation
Land #2758, @zeroSteiner's additions to railgun
Update Microsoft patch information
Make msftidy happy
Land #2720, @wchen-r7's httpserver test module
Land #2761, @wchen-r7's reference update