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.cpp

@@ -0,0 +1,28 @@
+#include "Display.h"
+
+#include <PwmBacklight.h>
+#include <St7789Display.h>
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
+    auto configuration = std::make_unique<St7789Display::Configuration>(
+        LCD_SPI_HOST,
+        LCD_PIN_CS,
+        LCD_PIN_DC,
+        LCD_HORIZONTAL_RESOLUTION,
+        LCD_VERTICAL_RESOLUTION,
+        nullptr,
+        true,
+        true,
+        false,
+        true,
+        0,
+        53, // Should be 52 according to https://github.com/m5stack/M5GFX/blob/master/src/M5GFX.cpp but this leaves a gap at the bottom
+        40
+    );
+
+    configuration->resetPin = LCD_PIN_RESET;
+    configuration->backlightDutyFunction = driver::pwmbacklight::setBacklightDuty;
+
+    auto display = std::make_shared<St7789Display>(std::move(configuration));
+    return std::reinterpret_pointer_cast<tt::hal::display::DisplayDevice>(display);
+}