Win32: add a libnfs.def file so we can build libraries/dlls

lib/libnfs.def

@@ -0,0 +1,76 @@
+LIBRARY libnfs
+EXPORTS
+mount_free_export_list
+mount_getexports
+mount_getexports_async
+nfs_access
+nfs_access_async
+nfs_chmod
+nfs_chmod_async
+nfs_chown
+nfs_chown_async
+nfs_close
+nfs_close_async
+nfs_closedir
+nfs_creat
+nfs_creat_async
+nfs_destroy_context
+nfs_fchmod
+nfs_fchmod_async
+nfs_fchown
+nfs_fchown_async
+nfs_fstat
+nfs_fstat_async
+nfs_fsync
+nfs_fsync_async
+nfs_ftruncate
+nfs_ftruncate_async
+nfs_get_error
+nfs_get_fd
+nfs_get_readmax
+nfs_get_writemax
+nfs_init_context
+nfs_link
+nfs_link_async
+nfs_lseek
+nfs_lseek_async
+nfs_mkdir
+nfs_mkdir_async
+nfs_mount
+nfs_mount_async
+nfs_open
+nfs_open_async
+nfs_opendir
+nfs_opendir_async
+nfs_pread
+nfs_pread_async
+nfs_pwrite
+nfs_pwrite_async
+nfs_read
+nfs_read_async
+nfs_readdir
+nfs_readlink
+nfs_readlink_async
+nfs_rename
+nfs_rename_async
+nfs_rmdir
+nfs_rmdir_async
+nfs_service
+nfs_set_auth
+nfs_stat
+nfs_stat_async
+nfs_statvfs
+nfs_statvfs_async
+nfs_symlink
+nfs_symlink_async
+nfs_truncate
+nfs_truncate_async
+nfs_unlink
+nfs_unlink_async
+nfs_utime
+nfs_utime_async
+nfs_utimes
+nfs_utimes_async
+nfs_which_events
+nfs_write
+nfs_write_async