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)

TactilityC/Source/tt_app_context.h

@@ -8,10 +8,30 @@ extern "C" {
 
 typedef void* AppContextHandle;
 
+/** @return the data that was attached to this app context */
 void* _Nullable tt_app_context_get_data(AppContextHandle handle);
+
+/**
+ * Attach data to an application context.
+ * Don't forget to manually delete allocated memory when onStopped() is called.
+ * @param[in] handle the app context handle
+ * @param[in] data the data to attach
+ */
 void tt_app_context_set_data(AppContextHandle handle, void* _Nullable data);
+
+/** @return the bundle that belongs to this application, or null */
 BundleHandle _Nullable tt_app_context_get_parameters(AppContextHandle handle);
+
+/**
+ * Set the result before closing an app.
+ * The result and bundle are passed along to the app that launched this app, when this app is closed.
+ * @param[in] handle the app context handle to set the result for
+ * @param[in] result the result state to set
+ * @param[in] bundle the result bundle to set
+ */
 void tt_app_context_set_result(AppContextHandle handle, Result result, BundleHandle _Nullable bundle);
+
+/** @return true if a result was set for this app context */
 bool tt_app_context_has_result(AppContextHandle handle);
 
 #ifdef __cplusplus