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/examples/widgets/menu/index.rst

@@ -0,0 +1,31 @@
+
+Simple Menu
+""""""""""""""""
+
+.. lv_example:: widgets/menu/lv_example_menu_1
+  :language: c
+
+Simple Menu with root btn
+""""""""""""""""""""""""""""
+
+.. lv_example:: widgets/menu/lv_example_menu_2
+  :language: c
+
+Simple Menu with custom header
+""""""""""""""""""""""""""""
+
+.. lv_example:: widgets/menu/lv_example_menu_3
+  :language: c
+
+Simple Menu with floating btn to add new menu page
+""""""""""""""""""""""""""""
+
+.. lv_example:: widgets/menu/lv_example_menu_4
+  :language: c
+
+Complex Menu
+""""""""""""""""""""""""""""
+
+.. lv_example:: widgets/menu/lv_example_menu_5
+  :language: c
+