changes from the laptop

- some should be the same as previous commit (sorry!)
- some should be new: LINT checks, ...?

sensors/activity/Activity.h

@@ -0,0 +1,20 @@
+#ifndef ACTIVITY_H
+#define ACTIVITY_H
+
+enum class Activity {
+
+	STANDING,
+
+	WALKING,
+
+	WALKING_UP,
+
+	WALKING_DOWN,
+
+	ELEVATOR_UP,
+
+	ELEVATOR_DOWN,
+
+};
+
+#endif // ACTIVITY_H