New board: Elecrow CrowPanel Advance 3.5" (#231)

- Implement CrowPanel Advance 3.5"
- New driver subproject: ILI9488
- New driver subproject: GT911
- Refactor T-Deck to use new driver subproject
- Fix for `flash.ps1`: don't set flash speed

Boards/ElecrowCrowpanelAdvance35/Source/hal/CrowPanelDisplay.cpp

@@ -0,0 +1,40 @@
+#include "CrowPanelDisplay.h"
+#include "CrowPanelDisplayConstants.h"
+
+#include <Gt911Touch.h>
+#include <PwmBacklight.h>
+#include <Ili9488Display.h>
+
+#define TAG "crowpanel_display"
+
+static std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
+    // Note for future changes: Reset pin is 48 and interrupt pin is 47
+    auto configuration = std::make_unique<Gt911Touch::Configuration>(
+        I2C_NUM_0,
+        320,
+        480
+    );
+
+    return std::make_shared<Gt911Touch>(std::move(configuration));
+}
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
+    auto touch = createTouch();
+
+    auto configuration = std::make_unique<Ili9488Display::Configuration>(
+        CROWPANEL_LCD_SPI_HOST,
+        CROWPANEL_LCD_PIN_CS,
+        CROWPANEL_LCD_PIN_DC,
+        CROWPANEL_LCD_HORIZONTAL_RESOLUTION,
+        CROWPANEL_LCD_VERTICAL_RESOLUTION,
+        touch,
+        false,
+        false,
+        false,
+        true
+    );
+
+    configuration->backlightDutyFunction = driver::pwmbacklight::setBacklightDuty;
+
+    return std::make_shared<Ili9488Display>(std::move(configuration));
+}