Remove a bunch of unneeded #include <ctype.h>s
From: Slava Semushin <php-coder@altlinux.ru>

fix missing license.

add wcstoll, wcstoimax, wcstoull and wcstoumax. (lib/20656)
- these are defined in C99 (wcsto[ui]max) and SUSv3.
- these implementations are written by sigsegv@s25.xrea.com,
derived from NetB

add wcstoll, wcstoimax, wcstoull and wcstoumax. (lib/20656)
- these are defined in C99 (wcsto[ui]max) and SUSv3.
- these implementations are written by sigsegv@s25.xrea.com,
derived from NetBSD's wcstol/wcstoul.
- I just added some comments.

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