Add docker-compose dev

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/Dockerfile

@@ -0,0 +1,9 @@
+FROM node:10
+
+LABEL maintainer="tcit"
+
+COPY docker/entrypoint.sh /bin/entrypoint
+
+WORKDIR /app/js
+
+EXPOSE 8080

js/docker/entrypoint.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+npm install
+npm rebuild node-sass
+npm run serve