build: move font generation to the main repo (#2837)

* build: move font generation to the main repo

* Update fonts

* chore: remove submodules

* Update paths

* Update fonts.yml

Co-authored-by: Kevin Barabash <kevinb@khanacademy.org>

dockers/fonts/Dockerfile

@@ -0,0 +1,40 @@
+FROM ubuntu:14.04
+MAINTAINER xymostech <xymostech@gmail.com>
+
+# Install things
+RUN apt-get update \
+ && DEBIAN_FRONTEND=noninteractive apt-get -y upgrade \
+ && DEBIAN_FRONTEND=noninteractive apt-get -y install \
+    --no-install-recommends --auto-remove \
+    software-properties-common \
+    texlive \
+    wget \
+    fontforge \
+    mftrace \
+    man-db \
+    build-essential \
+    python-fontforge \
+    python-dev \
+    python-pip \
+    pkg-config \
+    libharfbuzz-dev \
+    libfreetype6-dev \
+    libjson-perl \
+ && add-apt-repository ppa:git-core/ppa \
+ && apt-get update \
+ && DEBIAN_FRONTEND=noninteractive apt-get -y install \
+    --no-install-recommends --auto-remove \
+    git \
+ && apt-get clean \
+ && rm -rf /var/lib/apt/lists/* \
+ && pip install fonttools==3.28.0 brotli zopfli
+
+# Download and compile ttfautohint
+RUN wget "http://download.savannah.gnu.org/releases/freetype/ttfautohint-1.3.tar.gz" \
+ && tar -xzf ttfautohint-*.tar.gz \
+ && cd ttfautohint-*/ \
+ && ./configure --without-qt \
+ && make \
+ && mv frontend/ttfautohint /usr/bin \
+ && cd .. \
+ && rm -r ttfautohint-*