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/lv_example_style_12.py

@@ -0,0 +1,17 @@
+#
+# Local styles
+#
+
+style = lv.style_t()
+style.init()
+style.set_bg_color(lv.palette_main(lv.PALETTE.GREEN))
+style.set_border_color(lv.palette_lighten(lv.PALETTE.GREEN, 3))
+style.set_border_width(3)
+
+obj = lv.obj(lv.scr_act())
+obj.add_style(style, 0)
+
+# Overwrite the background color locally
+obj.set_style_bg_color(lv.palette_main(lv.PALETTE.ORANGE), lv.PART.MAIN)
+
+obj.center()