adding java10 download script

docker/provision/jdk/java-10.sh

@@ -0,0 +1,4 @@
+apt-get update && apt-get install -y wget
+wget https://download.java.net/java/jdk10/archive/42/BCL/jdk-10-ea+42_linux-x64_bin.tar.gz -O jdk.tar.gz
+tar -xzf jdk.tar.gz -C /opt
+mv /opt/jdk-10 /opt/jdk