Update src/{ns,mac}*.m to use bignum-compatible macros

Update src/{ns,mac}*.m to use bignum-compatible macros

* src/nsterm.m:
* src/nsselect.m:
* src/nsmenu.m:
* src/nsimage.m:
* src/nsfont.m:
* src/nsfns.m:
* src/macfont.m: Replace
"make_number"		-> "make_fixnum",
"XINT"			-> "XFIXNUM",
"XFASTINT"		-> "XFIXNAT",
"TYPE_RANGED_INTEGERP"	-> "TYPE_RANGED_FIXNUMP",
"RANGED_INTEGERP"	-> "RANGED_FIXNUMP",
"CHECK_NATNUM"		-> "CHECK_FIXNAT",
"CHECK_NUMBER"		-> "CHECK_FIXNUM",
"INTEGERP"		-> "FIXNUMP",
"NUMBERP"		-> "FIXED_OR_FLOATP",
as done in the following changes:
2018-07-06 Rename integerp->fixnum, etc, in preparation
for bignums (42fe787b)
2018-08-07 More macro renamings for bignum (d1ec3a0a)