Add tags to the artifact exchange

[scudette]

Currently there are a lot of artifacts on the exchange with varying quality, maintenance levels and types. Importing the exchange is an all or nothing approach.

We need finer grained control over the artifacts in the exchange:

1. one way it to add tags to the artifact then import based on tag filters. This allows us to include all the artifacts in one big zip
2. Create multiple zip files for different types of artifacts

The first option is better because we can apply multiple tags to the same artifact

Tags should include:

1. ExternalTools - uses external binaries
2. SQLite - artifacts that should be replaced by SQLitehunter
3. Registry - Artifacts that should be replaced by Registry Hunter
4. Deprecated - Old artifacts no one cares about (e.g. log4j)

Could be more.