set up local development for openscad lamdas

and make a start on combining with Three.js IdeViewer
Resolves #227

related #231

api/src/docker/Dockerfile

@@ -0,0 +1,11 @@
+FROM node:14
+
+COPY package.json ./
+COPY yarn.lock ./
+COPY aws-emulator.js ./
+
+RUN npm install
+
+EXPOSE 8080
+
+CMD ["node", "./aws-emulator.js"]