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_1.py

@@ -0,0 +1,24 @@
+#
+# Using the Size, Position and Padding style properties
+#
+style = lv.style_t()
+style.init()
+style.set_radius(5)
+
+# Make a gradient
+style.set_width(150)
+style.set_height(lv.SIZE.CONTENT)
+
+style.set_pad_ver(20)
+style.set_pad_left(5)
+
+style.set_x(lv.pct(50))
+style.set_y(80)
+
+# Create an object with the new style
+obj = lv.obj(lv.scr_act())
+obj.add_style(style, 0)
+
+label = lv.label(obj)
+label.set_text("Hello")
+