when generating Matchers factory, include sources for hamcrest-core too
when generating Matchers factory, include sources for hamcrest-core too

mmichaelis/JavaHamcrest,josephw/JavaHamcrest,dkomanov/JavaHamcrest,alb-i986/JavaHamcrest,plow/JavaHamcrest,vizewang/JavaHamcrest,rysh/JavaHamcrest,alb-i986/JavaHamcrest,vizewang/JavaHamcrest,tomwhoiscontrary/JavaHamcrest,akruijff/JavaHamcrest,rysh/JavaHamcrest,josephw/JavaHamcrest,jforge/JavaHamcrest,mmichaelis/JavaHamcrest,mnk/hamcrest,tomwhoiscontrary/JavaHamcrest,jforge/JavaHamcrest,plow/JavaHamcrest,akruijff/JavaHamcrest,mnk/hamcrest,dkomanov/JavaHamcrest,wgpshashank/JavaHamcrest,wgpshashank/JavaHamcrest