add TextBuffer functions
add TextBuffer functions

gtk_text_buffer_remove_selection_clipboard()
gtk_text_buffer_add_selection_clipboard()
gtk_text_buffer_paste_clipboard()
gtk_text_buffer_cut_clipboard()
gtk_text_buffer_copy_clipboard()
gtk_text_buffer_get_insert()
gtk_text_buffer_deserialize()
gtk_text_buffer_serialize()
gtk_text_buffer_register_deserialize_tagset()
gtk_text_buffer_register_serialize_tagset()
gtk_text_buffer_remove_tag_by_name()
gtk_text_buffer_create_tag()
gtk_text_buffer_get_iter_at_line_offset()
gtk_text_buffer_get_selection_bounds()
gtk_text_buffer_get_selection_bound()
gtk_text_buffer_delete_selection()
gtk_text_buffer_get_has_selection()
gotk3/gotk3,gotk3/gotk3