Better craftsmanship for Debugging Tools

[SamBroner]

We have a group of valuable test/debugging libraries. We should make them more accessible, better documented and out word facing.

1. Replay Tool
   Takes in a doc and creates a snapshot at a sequence #. Very useful for learning and visualization. Assumes we only use a specific set of DDSs
2. Fluid Debugger
   Adapter on the storage interface that is enabled through the browser. Let's you choose to load from a specific snapshot and run op by op through the doc. Can load files from disk using the Replay tool
3. Fetch Tool
   Download all ops and snapshots from storage. Relies on service drivers. Fetch tool feeds into the Replay tool
4. Anonymizer
   Remove user data from snapshots. Only useable on test documents?