* bfd-in2.h (tdata): Add lynx_core_data;
* config.bfd configure.host: Get rid of superfluous netbsd and
lynxos entries.
* configure.in: Add lynx-core.o to Lynx config.
* i386lynx.c: Add defs for core file support.
* lynx-core.c: New file with Lynx core file support.
* hosts/i386lynx.h: Move lots of host specific includes to here.
Add def of HOST_LYNX. Remove unnecessary defs.
