[installation] docker image with kotlin native compiler

tools/docker/Dockerfile

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+FROM ubuntu:18.04
+RUN apt-get update
+RUN apt-get install -y wget
+RUN apt-get install -y default-jdk
+ENV version 0.8.1
+ENV kotlin_native kotlin-native-linux-${version}
+RUN wget https://download-cf.jetbrains.com/kotlin/native/builds/releases/${version}/linux/${kotlin_native}.tar.gz
+RUN tar xzf ${kotlin_native}.tar.gz
+RUN echo "export PATH=\$PATH:/${kotlin_native}/bin" > /.rc.entry
+ENTRYPOINT /bin/bash --rcfile /.rc.entry