Merge develop into main (#167)

- WiFi Connect app is now hidden by default, but accessible at the bottom of the WiFi Manage app when WiFi is turned on.
- WiFi service now turns on WiFi when calling connect() and WiFi is not on.
- Removed `blocking` option for `service::loader::startApp()`. This feature was unused and complex.
- Various apps: Moved private headers into Private/ folder.
- Various apps: created start() function for easy starting.
- Added documentation to all TactilityC APIs
- Refactored various `enum` into `class enum`
- Refactor M5Stack `initBoot()` (but VBus is still 0V for some reason)

Boards/Simulator/Source/hal/SimulatorSdCard.h

@@ -8,14 +8,14 @@ class SimulatorSdCard : public SdCard {
 private:
     State state;
 public:
-    SimulatorSdCard() : SdCard(MountBehaviourAtBoot), state(StateUnmounted) {}
+    SimulatorSdCard() : SdCard(MountBehaviour::AtBoot), state(State::Unmounted) {}
 
     bool mount(const char* mountPath) override {
-        state = StateMounted;
+        state = State::Mounted;
         return true;
     }
     bool unmount() override {
-        state = StateUnmounted;
+        state = State::Unmounted;
         return true;
     }