Added multi interface functions to DLL definitions.

	curl_strnequal @ 24 ;

	curl_easy_duphandle @ 25 ;

	curl_formadd @ 26 ;

	curl_multi_init @ 27;

	curl_multi_add_handle @ 28;

	curl_multi_remove_handle @ 29;

	curl_multi_fdset @ 30;

	curl_multi_perform @ 31;

	curl_multi_cleanup @ 32;

	curl_multi_info_read @ 33;