devel/cdecl: update to 4.7.

Added more predefined typedefs
More predefined typedefs were added: blkcnt_t, blksize_t, clockid_t, clock_t, dev_t, errno_t, FILE, fpos_t, gid_t, in_addr_t, ino_t, in_port_t, mbstate_t, mode_t, nlink_t, off_t, pid_t, rlim_t, rsize_t, sa_family_t, socklen_t, suseconds_t, time_t, uid_t, useconds_t, and wint_t.