Add install.sh

Author: MartinBraquet

install.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -e
+
+cd "$(dirname "$0")"
+
+rm -rf node_modules web/node_modules backend/api/node_modules backend/email/node_modules command/node_modules backend/shared/node_modules
+
+yarn install
+