New board: Elecrow CrowPanel Basic 2.8" (#225)

- Implemented Elecrow CrowPanel Basic 2.8"
- Change default "invert" setting for ILI934x driver from `true` to `false`
- Created `Xpt2046` driver subproject
- Refactored unPhone to use new `Xpt2046` driver subproject

Boards/UnPhone/Source/hal/UnPhoneTouch.h

@@ -1,32 +1,8 @@
 #pragma once
 
-#include "Tactility/hal/touch/TouchDevice.h"
-#include <Tactility/TactilityCore.h>
-#include <esp_lcd_panel_io_interface.h>
-#include <esp_lcd_touch.h>
+#include <memory>
+#include <Xpt2046Touch.h>
 
-class UnPhoneTouch : public tt::hal::touch::TouchDevice {
+extern std::shared_ptr<Xpt2046Touch> touchInstance;
 
-private:
-
-    static UnPhoneTouch* instance;
-
-    esp_lcd_panel_io_handle_t _Nullable ioHandle = nullptr;
-    esp_lcd_touch_handle_t _Nullable touchHandle = nullptr;
-    lv_indev_t* _Nullable deviceHandle = nullptr;
-    void cleanup();
-
-public:
-
-    std::string getName() const final { return "XPT2046"; }
-    std::string getDescription() const final { return "I2C touch driver"; }
-
-    bool start(lv_display_t* display) override;
-    bool stop() override;
-    lv_indev_t* _Nullable getLvglIndev() override { return deviceHandle; }
-
-    bool getVBat(float& outputVbat);
-
-    /** Used for accessing getVBat() in Power driver */
-    static UnPhoneTouch* getInstance() { return instance; }
-};
+std::shared_ptr<Xpt2046Touch> createTouch();