insert malware in the vm

[gogo2464]

I want to install malware in the vm for malware analysis.

vagrant upload malware.exe C:\Users\vagrant\desktop\malware.exe

raise an error including :

Errno::ECONNREFUSED

I suggest to add an argument in order to install some files such as tools or virus for malware analysis.

Let's insert this line: https://github.com/nbeede/BoomBox/blob/master/build.ps1#L214