Bewest/persisted data - iterate on documenting data in mongo


## WIP
This is for transparency and discussion around what gets stored in mongo vs what the visualizations expect.

As a quick note:

* bolus and basals basically all need some kind of collation technique to prep data for vis
* in many cases the parsers cannot produce the information necessary for the visualization.  When this is the case vendor extended record types are inserted into mongo in order to avoid conflicting with the data model in untestable ways.

The following commits will attempt to document the ways in which the data stored in mongo (as produced from the parsers) differs from the visualization schema.