Add 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

extras/AssociativeContainers/map.hpp

@@ -12,6 +12,7 @@
 template <typename K, typename V>
 class Map
 {
+public: // msvc mangles public and private static fields differently so need for public
     static Map<K,V>* make()         {return new Map<K, V>(); }
 
     void insertOrAssign(const K& key, const V& value)