* as/link/lklib.c, as/link/lksdcclib.c, as/link/lklibr.h,

  as/link/getline.[ch], as/link/lkrel.[ch]: added,
  made support for differnet library formats more flexible,
  preparation for support of ar format
* as/link/lklibr.c, as/link/z80/Makefile.in,
  as/link/z80/linkgbz80.dsp, as/link/z80/linkz80.dsp,
  as/link/hc08/link_hc08.dsp, as/link/hc08/Makefile.in,
  as/link/mcs51/aslink.dsp, as/link/mcs51/Makefile.in,
  as/link/hc08/lkelf.c, as/link/aslink.h:
  made support for differnet library formats more flexible,
  preparation for support of ar format

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@5319 4a8a32a2-be11-0410-ad9d-d568d2c75423