Zephyr Hello World example

Based on the hello_world from Zephyr. Currently demonstrates:

Dev Container

Uses the arm image and STM32 for this example. Once the Dev Container is loaded, open a terminal and run west build -b native_sim app.

Name		Name	Last commit message	Last commit date
Latest commit History 2 Commits
.devcontainer		.devcontainer
.vscode		.vscode
src		src
CMakeLists.txt		CMakeLists.txt
LICENSE		LICENSE
README.md		README.md
prj.conf		prj.conf
west.yml		west.yml