Version 3.0.0: Modules Go!

The reason for the bump to v3 is because we're now supporting go modules. This has zero effect on our runtime dependencies, since 100% of our dependencies are in the standard library and therefore are not included in go.mod or go.sum. All dependencies mentioned in go.mod are test dependencies.

However, this will provide a list of driver versions that we've tested against.

This is the same as v2.2.0, but with go.mod and go.sum files.