Tactility modules refactored (#13)

* refactor modules

* moved esp_lvgl_port to libs/

* added missing file

* fix for sim build

* various sim/pc fixes

* lvgl improvements

* added missing cmake files

libs/lvgl/demos/lv_demos.h

@@ -0,0 +1,59 @@
+/**
+ * @file lv_demos.h
+ *
+ */
+
+#ifndef LV_DEMOS_H
+#define LV_DEMOS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "../lvgl.h"
+
+#if LV_USE_DEMO_WIDGETS
+#include "widgets/lv_demo_widgets.h"
+#endif
+
+#if LV_USE_DEMO_BENCHMARK
+#include "benchmark/lv_demo_benchmark.h"
+#endif
+
+#if LV_USE_DEMO_STRESS
+#include "stress/lv_demo_stress.h"
+#endif
+
+#if LV_USE_DEMO_KEYPAD_AND_ENCODER
+#include "keypad_encoder/lv_demo_keypad_encoder.h"
+#endif
+
+#if LV_USE_DEMO_MUSIC
+#include "music/lv_demo_music.h"
+#endif
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+
+/**********************
+ *      MACROS
+ **********************/
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /*LV_DEMO_H*/