Add FontAwesome assets (#1734)

Fixes #1472. TTF fonts were included as part of the FontAwesome kit, but
I opted to not add them because basically every browser won't use them
and it just pollutes the repo.

Author: Gold856

docs/.styleguide

@@ -12,5 +12,6 @@ modifiableFileExclude {
   \.ico$
   \.rknn$
   \.svg$
+  \.woff2$
   gradlew
 }

docs/source/_static/css/pv-icons.css

@@ -1,16 +1,3 @@
-/*!
- *  Font Awesome 4.7.0 by @davegandy - http://fontawesome.io - @fontawesome
- *  License - http://fontawesome.io/license (Font: SIL OFL 1.1, CSS: MIT License)
- */
-
-@font-face {
-    font-family: FontAwesome;
-    src: url(fonts/fontawesome-webfont.eot?674f50d287a8c48dc19ba404d20fe713);
-    src: url(fonts/fontawesome-webfont.eot?674f50d287a8c48dc19ba404d20fe713?#iefix&v=4.7.0) format("embedded-opentype"), url(fonts/fontawesome-webfont.woff2?af7ae505a9eed503f8b8e6982036873e) format("woff2"), url(fonts/fontawesome-webfont.woff?fee66e712a8a08eef5805a46892932ad) format("woff"), url(fonts/fontawesome-webfont.ttf?b06871f281fee6b241d60582ae9369b9) format("truetype"), url(fonts/fontawesome-webfont.svg?912ec66d7572ff821749319396470bde#fontawesomeregular) format("svg");
-    font-weight: 400;
-    font-style:normal
-}
-
 .code-block-caption>.headerlink, dl dt>.headerlink, h1>.headerlink, h2>.headerlink, h3>.headerlink, h4>.headerlink, h5>.headerlink, h6>.headerlink, p.caption>.headerlink, table>caption>.headerlink {
     font-family: FontAwesome;
     font-size: 0.75em;

docs/source/_static/css/v4-font-face.min.css

@@ -79,6 +79,7 @@
 
 
 def setup(app):
+    app.add_css_file("css/v4-font-face.min.css")
     app.add_css_file("css/pv-icons.css")