Abstracted the CDClient tables

There is now an option to utilize shared memory for some CDClient tables by adding `CD_PROVIDER_MEMORY=1` to the CMakeVariables.txt file.

Allows masterconfig.ini to specify another run command for the world server, to allow for easier debugging through `valgrind`.

dDatabase/CDProvider.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include "CDAbstractProvider.h"
+
+/**
+ * Shared memory provider with CDAbstractSharedMemoryProvider<key, value>
+ * 
+ * Depends on the boost::interprocess library — header only
+ * 
+ * Requires that CD_PROVIDER_MEMORY is defined and CD_PROVIDER_SQLITE is not defined
+ */
+#if defined(CD_PROVIDER_MEMORY) && !defined(CD_PROVIDER_SQLITE)
+
+#include "CDAbstractSharedMemoryProvider.h"
+
+#define CD_PROVIDER(provider, key, value) CDAbstractSharedMemoryProvider<key, value>* provider; typedef key CD_KEY; typedef value CD_VALUE
+#define NEW_CD_PROVIDER(provider, name, parser, size_calculator, cache) provider = new CDAbstractSharedMemoryProvider<CD_KEY, CD_VALUE>(name, parser, size_calculator, cache)
+
+template<typename KeyType, typename MappedType>
+using CDProvider = CDAbstractSharedMemoryProvider<KeyType, MappedType>;
+
+#endif
+
+/**
+ * SQLite provider with CDAbstractSqliteProvider<key, value>
+ * 
+ * No extra dependencies
+ * 
+ * Requires that CD_PROVIDER_SQLITE or CD_PROVIDER_MEMORY is not defined — the default option
+ */
+#if defined(CD_PROVIDER_SQLITE) || !defined(CD_PROVIDER_MEMORY)
+
+#include "CDAbstractSqliteProvider.h"
+
+#define CD_PROVIDER(provider, key, value) CDAbstractSqliteProvider<key, value>* provider; typedef key CD_KEY; typedef value CD_VALUE
+#define NEW_CD_PROVIDER(provider, name, parser, size_calculator, cache) provider = new CDAbstractSqliteProvider<CD_KEY, CD_VALUE>(name, parser, cache)
+
+template<typename KeyType, typename MappedType>
+using CDProvider = CDAbstractSqliteProvider<KeyType, MappedType>;
+
+#endif