use public access modifier for mscv correct linkage.

private static fileds are mangled as C and public static fields are mangled as S on MSVC. since fields with no access modifeiers in C++ classes are private by default, it affects the mangling of the fields on windows so need for public there
also fields that are private on the D side should match on C++ side. Posix doesn't really care about those but msvc does.

match private with private for msvc

extras/AssociativeContainers/map.hpp

@@ -12,12 +12,14 @@
 template <typename K, typename V>
 class Map
 {
-    static Map<K,V>* make()         {return new Map<K, V>(); }
-
     void insertOrAssign(const K& key, const V& value)
     {
         this->map.insert_or_assign(key, value);
     }
 
     std::map<K, V> map;
+
+public: // msvc mangles public and private static fields differently so need for public
+    static Map<K,V>* make()         {return new Map<K, V>(); }
+
 };