Fixup C++ compiler path in makefile of CoreLib

memcpy implementation added

CoreLib/Memory.h

@@ -7,6 +7,8 @@ void* memset (void* ptr, int value, size_t num);
 
 int memcmp( const void* ptr1, const void* ptr2, size_t num);
 
+void memcpy (void* dest, const void* src, size_t count );
+
 size_t strlen(const char* str);
 
 int strncmp ( const char* str1, const char* str2, size_t num );