add lv_components as src/extra and minor fixes

examples/styles/lv_style_example_6.c

@@ -0,0 +1,30 @@
+//#include "../../lv_examples.h"
+//
+///**
+// * Using the value style properties
+// */
+//void lv_ex_style_6(void)
+//{
+//    static lv_style_t style;
+//    lv_style_init(&style);
+//
+//    /*Set a background color and a radius*/
+//    lv_style_set_radius(&style, LV_STATE_DEFAULT, 5);
+//    lv_style_set_bg_opa(&style, LV_STATE_DEFAULT, LV_OPA_COVER);
+//    lv_style_set_bg_color(&style, LV_STATE_DEFAULT, LV_COLOR_SILVER);
+//
+//    /*Add a value text properties*/
+//    lv_style_set_value_color(&style, LV_STATE_DEFAULT, LV_COLOR_BLUE);
+//    lv_style_set_value_align(&style, LV_STATE_DEFAULT, LV_ALIGN_IN_BOTTOM_RIGHT);
+//    lv_style_set_value_ofs_x(&style, LV_STATE_DEFAULT, 10);
+//    lv_style_set_value_ofs_y(&style, LV_STATE_DEFAULT, 10);
+//
+//    /*Create an object with the new style*/
+//    lv_obj_t * obj = lv_obj_create(lv_scr_act(), NULL);
+//    lv_obj_add_style(obj, LV_OBJ_PART_MAIN, &style);
+//    lv_obj_align(obj, NULL, LV_ALIGN_CENTER, 0, 0);
+//
+//    /*Add a value text to the local style. This way every object can have different text*/
+//    lv_obj_set_style_local_value_str(obj, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT, "Text");
+//}
+//