* testsuite/setup-env: New file. Wine workaround. Can't get

../.lib into wine's dll search path, so create additional
symlinks.
* testsuite/teardown-env: ...and delete them here.
* examples/setup-env: Similar links setup here.
* examples/teardown-env: ... and deleted.

Rev: nettle/examples/setup-env:1.3
Rev: nettle/examples/teardown-env:1.3