Add component class which is sued to access the objects in different frame for the same screen object. We will treat the object as the same if the duplicated-src are the same or it is the grpup defined by duplicated-src.

# -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
# vim: sw=4:ts=8:sts=4
m4datadir = $(datadir)/mb
dist_m4data_DATA = foreach.m4 mb_c_header.m4 mb_c_source.m4
dist_bin_SCRIPTS = svg2code.py