Implement basic yocto build setup based on protos from jhnc-oss

dev/init_env.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+set -o errexit
+
+# Workaround for unsupported local manifest
+mkdir _local
+cd "${YOCTO_DIR}/_local"
+cp "${YOCTO_DIR}/default.xml" .
+git init -b master
+git add .
+git commit -m "local manifest"
+cd - > /dev/null
+
+repo --color=always init _local
+repo sync --no-clone-bundle
+rm -rf "${YOCTO_DIR}/_local"
+
+source poky/oe-init-build-env
+
+exec /bin/bash