Update classic MacOS makefiles to include Bzip2 support. Currently, it provides FT_Stream_OpenBzip2() that returns unimplemented error always, to prevent unresolved symbol error for the applications designed for Unix systems. * builds/mac/FreeType.m68k_cfm.make.txt: Include ftbzip2.c.o. * builds/mac/FreeType.m68k_far.make.txt: Ditto. * builds/mac/FreeType.ppc_carbon.make.txt: Include ftbzip2.c.x. * builds/mac/FreeType.ppc_classic.make.txt: Ditto.