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/scroll/index.rst

@@ -0,0 +1,33 @@
+
+Nested scrolling
+""""""""""""""""
+
+.. lv_example:: scroll/lv_example_scroll_1
+  :language: c
+
+Snapping
+""""""""""""""""
+.. lv_example:: scroll/lv_example_scroll_2
+  :language: c
+
+Floating button
+""""""""""""""""
+.. lv_example:: scroll/lv_example_scroll_3
+  :language: c
+
+Styling the scrollbars
+""""""""""""""""""""""""
+.. lv_example:: scroll/lv_example_scroll_4
+  :language: c
+
+Right to left scrolling
+""""""""""""""""""""""""
+.. lv_example:: scroll/lv_example_scroll_5
+  :language: c
+
+Translate on scroll
+""""""""""""""""""""""""
+.. lv_example:: scroll/lv_example_scroll_6
+  :language: c
+
+