Windows: Remove the need for _CRT_NONSTDC_NO_DEPRECATE.

Windows: Remove the need for _CRT_NONSTDC_NO_DEPRECATE.

Replace some function calls with their non-deprecated equivalents so
that we can remove _CRT_NONSTDC_NO_DEPRECATE from CMakeLists.txt and
config.nmake.

Leave _CRT_SECURE_NO_DEPRECATE in place. Removing it failed with 145
warnings and 72 errors.

Note that we could probably improve startup performance by using wmem
in diam_dict.*.

Change-Id: I6e130003de838aebedbdd1aa78c50de8a339ddcb
Reviewed-on: https://code.wireshark.org/review/14883
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>