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/docs/overview/index.md

@@ -0,0 +1,29 @@
+
+# Overview
+
+
+```eval_rst
+
+.. toctree::
+   :maxdepth: 2
+
+   object
+   coords
+   style
+   style-props
+   scroll
+   layer
+   event
+   indev
+   display
+   color
+   font
+   image
+   file-system
+   animation
+   timer
+   drawing
+   renderers/index
+   new_widget
+```
+