Revamp as a v2 Ember addon

[mixonic]

This package provides three things:

• Fonts
• Images
• Some SCSS styles

None of that requires the build steps inherent in this library being a full-blown Ember addon. Modern v2 Ember addons provide all the capability we need.

This patch converts the library to a v2 Ember addon.

Note that this package is also used by several applications at Addepar which are not Ember applications. The slimmer profile of a v2 addon decreases their dependency size and complexity.

Finally, this PR also includes woff2 format files for the included fonts. woff2 fonts are a modern standard and should be the default. SCSS files are updated to make woff2 the default.

[bantic]

This is a great cleanup, thank you for taking it on.

[addepar-davidlin]

Where did you get the Tiempos woff2s from? Is that an official release or did you run through a converter?

I think design-tokens is currently using woff but we could look to use these woff2s instead.

[mixonic]

I ran them through a converter based on https://github.com/papandreou/fontverter

import * as fontverter from 'fontverter';
import { readdirSync, readFileSync, writeFileSync } from 'fs';
import * as url from 'url';
import path from 'path';

for (const file of readdirSync(url.fileURLToPath(new URL('.', import.meta.url)), { withFileTypes: true })) {
  if (file.name.endsWith('woff')) {
    const converted = await fontverter.convert(readFileSync(path.join(file.path, file.name)), 'woff2');
    writeFileSync(file.name.replace('.woff', '.woff2'), converted);
  }
}

[mixonic]

I discussed with further with @addepar-davidlin on Slack. Taking the approvals and moving it on to the next steps.