This patch contains various TPF-platform specific changes.

A TPF-specific change to include additional header files was made to three
header files:

   lib/setup.h, src/setup.h, and tests/libtest/test.h

TPF-specific values were added to include/curl/curlbuild.h because TPF does
not run configure as part of its Curl build process.

And I would like to create sample build files for the TPF platform since it
doesn't use the normal Makefiles:

   packages/TPF/curl.mak,

   packages/TPF/maketpf.env_curllib, and

   packages/TPF/maketpf.env_curl

Thank you,

David McCreedy