Add Big Number

[timothyrenner]

If you've got big number needs you need a big number. Something like this:

NUMBER bigfoot 
    report_id COUNT -- can be field, aggregation, or transform, but needs to be one value.
    LABEL "Number of Sightings"

SVL should throw an error if the query that generates the number has more than one value.

[timothyrenner]

Plotly thinks of everything - https://plot.ly/javascript/indicator/

[timothyrenner]

It probably needs something to denote the value name, so it would probably look something like this:

NUMBER bigfoot
    VALUE report_id COUNT
    LABEL "Number of Sightings"

[timothyrenner]

[x] Add syntax support for NUMBER "plot" [x] Wire number into sqlite [ ] Implement sqlite -> plotly adapter for traces