CDClient cleanup and optimization (#1023)

* CDClient cleanup and optimization

- Use static function to get table name
- Remove unused GetName function
- Replace above function with a static GetTableName function
- Remove verbose comments
- Remove verbose initializers
- Remove need to specify table name when getting a table by name
- Remove unused typedef for mac and linux

* Re-add unused table

Convert tables to singletons

- Convert all CDClient tables to singletons
- Move Singleton.h to dCommon
- Reduce header clutter in CDClientManager

dDatabase/Tables/CDTable.h

@@ -1,9 +1,8 @@
 #pragma once
 
-// Custom Classes
-#include "../CDClientDatabase.h"
+#include "CDClientDatabase.h"
+#include "Singleton.h"
 
-// C++
 #include <functional>
 #include <string>
 #include <vector>
@@ -19,23 +18,8 @@
 #pragma warning (disable : 4244) //Disable double to float conversion warnings
 #pragma warning (disable : 4715) //Disable "not all control paths return a value"
 
-#if defined(__unix) || defined(__APPLE__)
-//For Linux:
-typedef __int64_t __int64;
-#endif
-
-/*!
-  \file CDTable.hpp
-  \brief A virtual class for CDClient Tables
- */
-
- //! The base class for all CD tables
-class CDTable {
-public:
-
-	//! Returns the table's name
-	/*!
-	  \return The table name
-	 */
-	virtual std::string GetName() const = 0;
+template<class Table>
+class CDTable : public Singleton<Table> {
+protected:
+	virtual ~CDTable() = default;
 };