Reapply "Looks like BSD uses locale_t as well"

Whoops, this should be independent of the zlib changes

This reverts commit 91aaf2a.

Author: starseeker

opennurbs/opennurbs_locale.patch

@@ -54,3 +54,14 @@
      // Test formatted scanning
      double a = ON_UNSET_VALUE;
      // Testing C-runtime - do not using ON_String::Scan
+--- opennurbs/opennurbs_locale.h	2024-10-09 16:55:58.208881912 -0400
++++ OPENNURBS_BLD/opennurbs_locale.h	2024-10-09 16:58:29.524197114 -0400
+@@ -21,6 +21,8 @@
+   locale_t
+ #elif defined(ON_RUNTIME_ANDROID)
+   locale_t
++#elif defined(ON_RUNTIME_BSD)
++  locale_t
+ #else
+   ON__UINT_PTR
+ #endif