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.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#include "Tactility/hal/display/DisplayDevice.h"
+#include <esp_lcd_types.h>
+#include <lvgl.h>
+
+class CrowPanelDisplay : public tt::hal::display::DisplayDevice {
+
+private:
+
+    esp_lcd_panel_io_handle_t ioHandle = nullptr;
+    esp_lcd_panel_handle_t panelHandle = nullptr;
+    lv_display_t* displayHandle = nullptr;
+    bool poweredOn = false;
+
+public:
+
+    std::string getName() const final { return "ST7789"; }
+    std::string getDescription() const final { return "SPI display"; }
+
+    bool start() override;
+
+    bool stop() override;
+
+    void setPowerOn(bool turnOn) override;
+    bool isPoweredOn() const override { return poweredOn; };
+    bool supportsPowerControl() const override { return true; }
+
+    std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable createTouch() override;
+
+    void setBacklightDuty(uint8_t backlightDuty) override;
+    bool supportsBacklightDuty() const override { return true; }
+
+    void setGammaCurve(uint8_t index) override;
+    uint8_t getGammaCurveCount() const override { return 4; };
+
+    lv_display_t* _Nullable getLvglDisplay() const override { return displayHandle; }
+};
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay();