dillon1000/react

Configure rollup to strip comments and whitespace

For now this configures rollup to strip out comments in DEV builds and 
whitespace. Unfortunately there's no easy way to do this in just terser alone or 
other minifiers/manglers, so I had to add prettier as well to re-format the 
minified code. This does make the build a little bit slower: 

``` before: yarn build  118.96s user 12.38s system 185% cpu 1:10.81 total after: 
 yarn build  121.55s user 12.90s system 183% cpu 1:13.17 total ``` 

Eventually I would like to have a similar setup to React's rollup config where 
we can have DEV and prod builds. After the repo merge we could probably share or 
reuse bits of React's rollup config.