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/CDMissionNPCComponentTable.h

@@ -3,12 +3,6 @@
 // Custom Classes
 #include "CDTable.h"
 
-/*!
- \file CDMissionNPCComponentTable.hpp
- \brief Contains data for the ObjectSkills table
- */
-
- //! MissionNPCComponent Struct
 struct CDMissionNPCComponent {
 	unsigned int id;                //!< The ID
 	unsigned int missionID;         //!< The Mission ID
@@ -17,35 +11,16 @@ struct CDMissionNPCComponent {
 	std::string gate_version;  //!< The gate version
 };
 
-//! MissionNPCComponent table
-class CDMissionNPCComponentTable : public CDTable {
+class CDMissionNPCComponentTable : public CDTable<CDMissionNPCComponentTable> {
 private:
 	std::vector<CDMissionNPCComponent> entries;
 
 public:
-
-	//! Constructor
-	CDMissionNPCComponentTable(void);
-
-	//! Destructor
-	~CDMissionNPCComponentTable(void);
-
-	//! Returns the table's name
-	/*!
-	  \return The table name
-	 */
-	std::string GetName(void) const override;
-
-	//! Queries the table with a custom "where" clause
-	/*!
-	  \param predicate The predicate
-	 */
+	CDMissionNPCComponentTable();
+	// Queries the table with a custom "where" clause
 	std::vector<CDMissionNPCComponent> Query(std::function<bool(CDMissionNPCComponent)> predicate);
 
-	//! Gets all the entries in the table
-	/*!
-	  \return The entries
-	 */
+	// Gets all the entries in the table
 	std::vector<CDMissionNPCComponent> GetEntries(void) const;
 
 };