add assert.h component

In order to allow seamless assert() usage in release builds without the
need for fiddling with CMake C flags as CMake adds -DNDEBUG switch in
release builds which disable assert().

Signed-off-by: Petr Štetiar <ynezz@true.cz>

assert.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#ifdef NDEBUG
+#undef NDEBUG
+#include <assert.h>
+#define NDEBUG
+#else
+#include <assert.h>
+#endif