Fix bignum creation when EMACS_INT is wider than long

Fix bignum creation when EMACS_INT is wider than long

* src/alloc.c (mpz_set_intmax_slow, mpz_set_uintmax_slow): New
functions.
* src/data.c (arith_driver, Frem, Fmod, ash_lsh_impl, Fadd1)
(Fsub1): Use mpz_set_intmax, mpz_set_uintmax.
* src/emacs-module.c (module_make_integer): Use mpz_set_intmax.
* src/floatfns.c (Fabs): Use mpz_set_intmax.
* src/lisp.h (mpz_set_intmax, mpz_set_uintmax): New inline
functions.
(mpz_set_uintmax_slow, mpz_set_intmax_slow): Declare.