Add docker and examples

[pbnj]

I needed to use Virus Total API in a container environment and came across this project. Thank you for providing such a complete coverage of VirusTotal API.

I am contributing a Dockerfile and one example of how to use it in examples directory.

[doomedraven]

Nice, thanks, but bear in mind pyv3 is not full as vt.py and not totally mover to py3 as i have not time to finish it

[pbnj]

@doomedraven , thank you for clarifying. It is easy for me to update the docker image to use use python2 instead.

• FROM python:2-slim instead of FROM python:3-slim
• ENTRYPOINT [ "python", "vt/vt.py" ] instead of ENTRYPOINT [ "python", "vt/vt3.py" ]

I'll send another PR

[doomedraven]

i have updated the docker file, thanks again :)