Databases with R

Databases with R - 2.0.9000

Simplified demo using latest versions of modeldb and dbplot
Added a NEWS.md file to track changes to the package.

Databases with R - 2.0

Delivered at rstudio::conf2019
Uses BigQuery for demo
Uses modeldb and dbplot for the demo

Databases with R - 1.0

Deliverd at rstudio::conf2018
Uses Microsoft SQL for demo