Adding google font as a local asset, fixing missing font-face, adding…

[HotEmu]

Fixes #39 and #40

• Add Google Font as local asset.
• Fixes missing @font-face.
• Adds Arial as fall back.

Added 10 font files (.svg, .woff, .woff2, .eot,), when fetched from CDN, Google sends a file based on user agent, we need all file types that are used by various browsers.
Added Arial to font-family when Libre Franklin is unavailable. (TODO for the future, we may want to just modify font-family in one place in CSS that will cover all DOM elements such as: a, h1, h2...).
WebPack moves font files to a font folder, used "include" option because our fonts have .svg file, which normally WebPack would treat as any other image, but in our case, we need to keep it in the fonts folder.

Crossbrowser explanation for font-family:

@font-face {
font-family: 'MyWebFont';
src: url('webfont.eot'); /* IE9 Compat Modes /
src: url('webfont.eot?#iefix') format('embedded-opentype'), / IE6-IE8 /
url('webfont.woff2') format('woff2'), / Super Modern Browsers /
url('webfont.woff') format('woff'), / Pretty Modern Browsers /
url('webfont.ttf') format('truetype'), / Safari, Android, iOS /
url('webfont.svg#svgFontName') format('svg'); / Legacy iOS */
}