Create a GtkImage with text

Property definitions

gtk $ GtkImage :: file
	# Create a GtkImage with text
	new file(filename: String) import String.to_cstring `{
		return (GtkImage*)gtk_image_new_from_file(String_to_cstring(filename));
	`}
lib/gtk/v3_4/gtk_core.nit:730,2--733,3