Merge branch 'docker' into 'pregmod-master'

Added Dockerfile to compile and serve the game

See merge request pregmodfan/fc-pregmod!7205

docker/Dockerfile

+# Build and run an FC Docker container
+# $ docker build -t fc .
+# $ docker run -d --rm -p 8080:80 fc
+# Access with brownser at http://localhost:8080
+
+# Compile
+FROM ubuntu
+ENV DEBIAN_FRONTEND=noninteractive
+ENV TZ=America/New_York
+RUN apt update
+RUN apt install -y git
+WORKDIR /opt
+RUN git clone https://gitgud.io/pregmodfan/fc-pregmod.git
+WORKDIR /opt/fc-pregmod
+RUN chmod +x devTools/tweeGo/tweego_nix*
+RUN bash ./compile.sh
+
+# Install the 3d renders hosted on mega.nz
+RUN apt install -y megatools unzip
+WORKDIR /tmp
+RUN megadl --path=renders.zip https://mega.nz/#!upoAlBaZ!EbZ5wCixxZxBhMN_ireJTXt0SIPOywO2JW9XzTIPhe0
+RUN unzip renders.zip
+RUN cp -r 'Free Cities v 0.10.4 renders'/resources /opt/fc-pregmod/bin/
+
+# Serve with nginx
+FROM nginx
+COPY --from=0 /opt/fc-pregmod/bin /usr/share/nginx/html
+WORKDIR /usr/share/nginx/html
+RUN mv FC_pregmod.html index.html