LVGL VSCode Extension

This is a beta release to test basic extension functionality.

After installing:

1. Use Docker to pull coevin/emscripten-sdl2 (this is used to compile the runtime, to show the preview)
2. Add an LVGL project as a workspace folder (must have a globals.xml file). Important! Do this before the next step.
3. Use command palette to run "LVGL: Open Preview"
4. Hit "Generate code" button
5. Hit "Compile project" button (takes a few minutes)

The preview panel will show an interactive preview of any LVGL XML file.

Known Issues:

• Project compilation sometimes fails, but works on the second try.