Implement M5Stack Cardputer + minor Tactility improvements (#331)

- Implement M5Stack Cardputer: display, SD card and keyboard
- `St7789Display` now supports a "gap" configuration
- `ElfApp` has improved errors

Boards/M5stackCardputer/Source/devices/Display.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "Tactility/hal/display/DisplayDevice.h"
+#include <memory>
+
+#define LCD_SPI_HOST SPI2_HOST
+#define LCD_PIN_CS GPIO_NUM_37
+#define LCD_PIN_DC GPIO_NUM_34 // RS
+#define LCD_PIN_RESET GPIO_NUM_33
+#define LCD_HORIZONTAL_RESOLUTION 240
+#define LCD_VERTICAL_RESOLUTION 135
+#define LCD_DRAW_BUFFER_HEIGHT (LCD_VERTICAL_RESOLUTION / 10)
+#define LCD_DRAW_BUFFER_SIZE (LCD_HORIZONTAL_RESOLUTION * LCD_DRAW_BUFFER_HEIGHT)
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay();