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/styles/index.rst

@@ -0,0 +1,98 @@
+
+Size styles
+"""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_1
+  :language: c
+
+Background styles
+"""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_2
+  :language: c
+
+Border styles
+""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_3
+  :language: c
+
+Outline styles
+""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_4
+  :language: c
+
+Shadow styles
+""""""""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_5
+  :language: c
+
+Image styles
+""""""""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_6
+  :language: c
+
+Arc styles
+""""""""""""""""""""""""
+
+.. lv_example:: style/lv_example_style_7
+  :language: c
+
+Text styles
+""""""""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_8
+  :language: c
+
+Line styles
+""""""""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_9
+  :language: c
+
+
+Transition
+""""""""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_10
+  :language: c
+
+
+Using multiple styles
+""""""""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_11
+  :language: c
+
+
+Local styles
+""""""""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_12
+  :language: c
+
+
+Add styles to parts and states
+"""""""""""""""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_13
+  :language: c
+
+
+Extending the current theme
+""""""""""""""""""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_14
+  :language: c
+
+
+Opacity and Transformations
+""""""""""""""""""""""""""""""""""
+
+.. lv_example:: styles/lv_example_style_15
+  :language: c
+
+