[POSSIBLE NEW FEATURE] Arrays/VLA

[silvioprog]

It would be nice to support some array structure (or at least the C99 VLAs support) that could allow to do something like this:

static void download_cb(void *cls, struct sg_route *route) {
    sg_array **segments = sg_route_segments(route);
    printf("Download - %s\n", sg_array_str(segments, 0));
    sg_cleanup(segments);
}

The sg_array above would be the array structure, and the sg_array_str() return the string value of an item retrieved by its index (zero in our example).