Start outlining a very simple tracing library that can be serialized to Accumulo
for historical purposes that actually *does* what I want it to do (region-based
    timings).
writing a simple tracing library, wip
Add in the new tracing calls to CosmosImpl
Basic serialization of timings into their own table
Fix up the confusing places surrounding the reverse long rowkey in the basic
client api
Add cosmos.IntegrationTests in all modules to just simplify things.

Get some tests for the custom tracing to ensure that the basic API calls
actually work.
Need to account for the difference in src/main and src/test "classpaths"