add lv_components as src/extra and minor fixes

examples/layouts/grid/lv_grid_example_5.c

@@ -0,0 +1,41 @@
+//#include "../../lv_examples.h"
+//
+///**
+// * Demonstrate margin in grid
+// */
+//void lv_ex_grid_5(void)
+//{
+//
+//    /*60x60 cells*/
+//    static lv_coord_t col_dsc[3] = {100, 60, 60};
+//    static lv_coord_t row_dsc[3] = {60, 60, 60};
+//
+//    static lv_grid_t grid;
+//    lv_grid_init(&grid);
+//    lv_grid_set_template(&grid, col_dsc, 3, row_dsc, 3);
+//
+//    /*Create a container with grid*/
+//    lv_obj_t * cont = lv_obj_create(lv_scr_act(), NULL);
+//    lv_obj_set_size(cont, 300, 220);
+//    lv_obj_align(cont, NULL, LV_ALIGN_CENTER, 0, 0);
+//    lv_obj_set_grid(cont, &grid);
+//
+//    lv_obj_t * label;
+//    lv_obj_t * obj;
+//    uint32_t i;
+//    for(i = 0; i < 9; i++) {
+//        uint8_t col = i % 3;
+//        uint8_t row = i / 3;
+//
+//        obj = lv_obj_create(cont, NULL);
+//        lv_obj_set_grid_cell(obj, LV_GRID_CELL_START(col, 1), LV_GRID_CELL_START(row, 1));
+//        lv_obj_set_size(obj, 55, 55);
+//        if(i == 1) {
+//            lv_obj_set_style_local_margin_all(obj, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT, 5);
+//        }
+//        label = lv_label_create(obj, NULL);
+//        lv_label_set_text_fmt(label, "%d,%d", col, row);
+//        lv_obj_align(label, NULL, LV_ALIGN_CENTER, 0, 0);
+//    }
+//}
+//