Fixes and new apps (#30)

- M5 Unit Modules library + M5 Unit Test app
- Minor fixes for TodoList, TwoEleven, Snake, Brainfuck and Breakout
- Fixed SerialConsole to use the uart controller as it was broken in one of the many updates
- Fixed keyboard input in TwoEleven, Breakout, Magic8Ball and Snake
- Bluetooth Media Keys app, supports pressing physical keys to trigger the corresponding buttonmatrix button
- Epub Reader app

Apps/M5UnitTest/main/Source/TestListView.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include <array>
+#include <lvgl.h>
+#include <tactility/lvgl_icon_shared.h>
+#include <tt_app.h>
+
+class M5UnitTest;
+
+class TestListView {
+public:
+    void onStart(lv_obj_t* parent, AppHandle handle, M5UnitTest* app);
+    void onStop();
+
+private:
+    lv_obj_t* list_ = nullptr;
+    M5UnitTest*  app_ = nullptr;
+
+    static constexpr std::array<const char*, 11> UNIT_NAMES = {{
+        "8Encoder",
+        "ByteButton",
+        "Joystick2",
+        "Scroll",
+        "PaHub",
+        "Color LCD",
+        "LCD Gfx Test",
+        "Dual-Button",
+        "CardKB2",
+        "MIDI / Synth",
+        "RFID 2",
+    }};
+    // Interface icons from shared Material icon font
+    static constexpr std::array<const char*, 11> UNIT_ICONS = {{
+        LVGL_ICON_SHARED_SETTINGS,       // 8Encoder      - I2C
+        LVGL_ICON_SHARED_SETTINGS,       // ByteButton    - I2C
+        LVGL_ICON_SHARED_GAMEPAD,        // Joystick2     - I2C
+        LVGL_ICON_SHARED_SETTINGS,       // Scroll        - I2C
+        LVGL_ICON_SHARED_HUB,            // PaHub         - I2C
+        LVGL_ICON_SHARED_DEVICES,        // Color LCD     - I2C
+        LVGL_ICON_SHARED_AREA_CHART,     // LCD Gfx Test  - I2C
+        LVGL_ICON_SHARED_ELECTRIC_BOLT,  // Dual-Button   - GPIO
+        LVGL_ICON_SHARED_KEYBOARD_ALT,   // CardKB2       - I2C
+        LVGL_ICON_SHARED_MUSIC_NOTE,     // MIDI / Synth  - UART
+        LVGL_ICON_SHARED_WIFI,           // RFID 2        - I2C
+    }};
+    static constexpr int UNIT_COUNT = UNIT_NAMES.size();
+
+    static void onBtnClicked(lv_event_t* e);
+};