Build and Run no longer works

[clach04]

This seems to be a fairly recent problem, I recall it working fine a while back.

Simple workaround, ensure includePath vscode setting is actually set. I've documented one way to do this in https://github.com/clach04/pebble_watchface_framework#instructions

6. Open source file (e.g. watchface.c), see problems pane fill with a couple
   of errors. Right click on first one,
   #include errors detected. Please update your includePath. Squiggles are disabled for this translation unit (/workspaces/codespaces-pebble/myfirstproject/src/c/myfirstproject.c).,
   right click and edit include path Edit "includePath" setting.
   Then close new edit view.
   This will create a .vscode file with correct path, a preset one not not
   included so as to avoid local SDK conflicts
   (TODO consider updating setup script to handle this).