Add test scripts and CI

Currently, the fossdriver repo does not include any test scripts or CI integration. Prior to an official release, it should include:

- scripts to enable spinning up a test Fossology server (presumably using the Fossology docker images)
- CI integration (perhaps Travis CI?)
- testing scripts to run through fossdriver functionality and ensure it works against the Fossology test server)

As a bonus, this could also be set up to test against multiple versions of Fossology, to help ensure that fossdriver stays current if/when the Fossology interface changes.