Visualizations for cash bail rate and race breakdown

[alexwgraves]

Changes

• I added GT America, the font that these will be in on the website. For visualizations in particular this is important to ensure the sizing and placement is correct with the CSS.
  • Rong and I figured out a workaround for the condensed face, which didn't seem to be working. I've add in this PR the file referenced at the top of table.css. You should be able to install the regular one (i.e. not condensed) and have the rest of the text work fine — this seems to be an issue with how the font file is constructed for the font-stretch property.
• This PR creates the BarGraphCell and NumberLineCell for the visualizations. The former should only ever take one number, whereas the second can display up to two.
  • We'll be able to reuse NumberLineCell over a bunch of the graphs, and BarGraphCell can probably be extended for the bail type distribution tables
  • These are configured by specifying the type of the visualization when you pass in the data array: bar for BarGraphCell and line for NumberLineCell.
• I also created the VizHeaderCell which extended HeaderCell and displays the ticks and numbers for the start and end of the graphs as well as for the average(s)
  • There are some issues with the spacing for this, particularly line 197 of Table.js. I had to adjust the padding manually until the ticks lined up with the average line in the cells. I'm going to keep looking into this, but for the time being those hand-coded values are relative to the width of the text box, which isn't ideal.
• I added initial styling for mobile in mobile.css. It's not perfect, but everything fits without horizontal scrolling on a modern-sized phone. (Think iPhone X, Pixel, but not like an iPhone SE or one of the smaller ones. They can deal with some scroll.)

[apothuku]

I don't know enough CSS to give that portion a meaningful review. But I read it and it looks good to me.

Everything else looks fine - feel free to merge if you don't want to deal with the tick that's slightly-off on my screen (it might look fine on your screen, which brings up the scary possibility that it could look different on different screens)

[apothuku]

The tick is fixed on my end! This is good to merge whenever you'd like