add Arduino library files

library.properties

@@ -0,0 +1,10 @@
+name=lvgl
+version=7.0.2
+author=kisvegabor
+maintainer=Pavel Brychta <pablo@xpablo.cz>
+sentence=Full-featured Graphics Library for Embedded Systems
+paragraph=Powerful and easy-to-use embedded GUI with many widgets, advanced visual effects (opacity, antialiasing, animations) and low memory requirements (16K RAM, 64K Flash).
+category=Display
+url=https://lvgl.io
+architectures=*
+includes=lvgl.h

src/lvgl.h

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+/**
+ * @file lvgl.h
+ * This file exists only to be compatible with Arduino's library structure
+ */
+
+#ifndef LVGL_SRC_H
+#define LVGL_SRC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+
+#include "../lvgl.h"
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+/**********************
+ *      MACROS
+ **********************/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*LVGL_SRC_H*/