Virustotal-python

Update dependencies for security vulnerability. Fixed an issue with some tests failing.

Added Context Manager support and tests. Updated dependencies and license year.

Added support for the VirusTotal v3 API. Library redesign (new usage, examples, tests and more.) See [24](https://github.com/dbrennand/virustotal-python/pull/24).

Update dependencies for security vulnerability.

Updated dependencies, removed method `file_rescan`

Added tests. Updated dependencies, Updated examples and README, `url_report` param `scan` now accepts `type(int)`, no longer `type(str)`