Re-implement Core2 and other improvements (#141)

- Create real drivers instead of wrapping M5Unified/M5GFX
- Display HAL improvements (better default base class behaviour)
- Fixed bug with LVGL statusbar service locking (would hang indefinitely waiting for mutex, causing WDT issues)
- Fixes for `Critical.h`
- Fixes and improvements for `Dispatcher` and `DispatcherThread`

Boards/M5stackCore2/Source/InitLvgl.cpp

@@ -0,0 +1,31 @@
+#include "Log.h"
+#include "Thread.h"
+#include "lvgl/LvglSync.h"
+#include "esp_lvgl_port.h"
+
+#define TAG "core2"
+
+// LVGL
+// The minimum task stack seems to be about 3500, but that crashes the wifi app in some scenarios
+// At 4000, it crashes when the fps renderer is available
+#define CORE2_LVGL_TASK_STACK_DEPTH 8192
+
+bool initLvgl() {
+    const lvgl_port_cfg_t lvgl_cfg = {
+        .task_priority = tt::THREAD_PRIORITY_RENDER,
+        .task_stack = CORE2_LVGL_TASK_STACK_DEPTH,
+        .task_affinity = -1, // core pinning
+        .task_max_sleep_ms = 500,
+        .timer_period_ms = 5
+    };
+
+    TT_LOG_D(TAG, "LVGL port init");
+    if (lvgl_port_init(&lvgl_cfg) != ESP_OK) {
+        TT_LOG_E(TAG, "LVGL port init failed");
+        return false;
+    }
+
+    tt::lvgl::syncSet(&lvgl_port_lock, &lvgl_port_unlock);
+
+    return true;
+}