Boot splash and more (#98)

* Boot splash and more

- Added developer sdkconfig
- Refactored the way FreeRTOS includes are included
- Improved Gui/Loader logic
- Implemented boot app with splash screen

* Updated naming for Gui and Loader services

* Renamed Screenshot service methods

* Renames

* Service renames

Tactility/Source/service/gui/Gui.h

@@ -14,26 +14,26 @@ typedef struct Gui Gui;
  * @param on_show
  * @param on_hide
  */
-void show_app(app::App& app, ViewPortShowCallback on_show, ViewPortHideCallback on_hide);
+void showApp(app::App& app, ViewPortShowCallback on_show, ViewPortHideCallback on_hide);
 
 /**
  * Hide the current app's viewport.
  * Does not request a re-draw because after hiding the current app,
  * we always show the previous app, and there is always at least 1 app running.
  */
-void hide_app();
+void hideApp();
 
 /**
  * Show the on-screen keyboard.
  * @param textarea the textarea to focus the input for
  */
-void keyboard_show(lv_obj_t* textarea);
+void keyboardShow(lv_obj_t* textarea);
 
 /**
  * Hide the on-screen keyboard.
  * Has no effect when the keyboard is not visible.
  */
-void keyboard_hide();
+void keyboardHide();
 
 /**
  * The on-screen keyboard is only shown when both of these conditions are true:
@@ -41,7 +41,7 @@ void keyboard_hide();
  *  - TT_CONFIG_FORCE_ONSCREEN_KEYBOARD is set to true in tactility_config.h
  * @return if we should show a on-screen keyboard for text input inside our apps
  */
-bool keyboard_is_enabled();
+bool keyboardIsEnabled();
 
 /**
  * Glue code for the on-screen keyboard and the hardware keyboard:
@@ -49,6 +49,6 @@ bool keyboard_is_enabled();
  *  - Registers the textarea to the default lv_group_t for hardware keyboards.
  * @param textarea
  */
-void keyboard_add_textarea(lv_obj_t* textarea);
+void keyboardAddTextArea(lv_obj_t* textarea);
 
 } // namespace