Add docker container with toolchain and libraries to build aarch64 binary

docker/Dockerfile

@@ -0,0 +1,45 @@
+FROM debian/eol:buster-slim
+ENV DEBIAN_FRONTEND noninteractive
+
+ENV TZ=Europe/Brussels
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
+RUN apt-get -y update && apt-get -y install \
+  build-essential \
+#  bc \
+#  bzip2 \
+#  bzr \
+#  cmake \
+#  cmake-curses-gui \
+#  cpio \
+#  device-tree-compiler \
+  git \
+#  imagemagick \
+#  libncurses5-dev \
+#  locales \
+#  make \
+#  p7zip-full \
+#  rsync \
+#  sharutils \
+#  scons \
+#  tree \
+#  unzip \
+#  vim \
+#  wget \
+#  zip \
+  libsdl2-dev \
+  libsdl2-image-dev \
+  libavformat-dev \
+  && rm -rf /var/lib/apt/lists/*
+
+RUN mkdir -p /root/workspace
+WORKDIR /root
+
+# COPY support .
+# RUN ./build-toolchain.sh
+# RUN cat ./setup-env.sh >> .bashrc
+
+VOLUME /root/workspace
+WORKDIR /root/workspace
+
+CMD ["/bin/bash"]