this adds the following 4 functions. see libnfs.h for details.
struct nfs_url *nfs_parse_url_full(struct nfs_context *nfs, char *url);
struct nfs_url *nfs_parse_url_dir(struct nfs_context *nfs, char *url);
struct nfs_url *nfs_parse_url_incomplete(struct nfs_context *nfs, char *url);
void nfs_destroy_url(struct nfs_url *url);
Signed-off-by: Peter Lieven <pl@kamp.de>