Refactored for teensy 4.0, xEvi hardware

- Switched to platformio, ino -> cpp
- MPRLS for pressure sensor
- Added basic ICM support
- Removed widi, battery, other features not supported in xEvi
- Removed legacy options/processing
- Added LED strip support
- Added encoder support
- Reworked menu code to use encoders/be more flexible

NuEVI/.vscode/settings.json

@@ -0,0 +1,9 @@
+{
+    "files.associations": {
+        "type_traits": "cpp",
+        "*.tcc": "cpp",
+        "ostream": "cpp",
+        "streambuf": "cpp",
+        "array": "cpp"
+    }
+}