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/CDObjectSkillsTable.h

@@ -3,12 +3,6 @@
 // Custom Classes
 #include "CDTable.h"
 
-/*!
- \file CDObjectSkillsTable.hpp
- \brief Contains data for the ObjectSkills table
- */
-
- //! ObjectSkills Struct
 struct CDObjectSkills {
 	unsigned int objectTemplate;        //!< The LOT of the item
 	unsigned int skillID;               //!< The Skill ID of the object
@@ -16,35 +10,16 @@ struct CDObjectSkills {
 	unsigned int AICombatWeight;        //!< ???
 };
 
-//! ObjectSkills table
-class CDObjectSkillsTable : public CDTable {
+class CDObjectSkillsTable : public CDTable<CDObjectSkillsTable> {
 private:
 	std::vector<CDObjectSkills> entries;
 
 public:
-
-	//! Constructor
-	CDObjectSkillsTable(void);
-
-	//! Destructor
-	~CDObjectSkillsTable(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
-	 */
+	CDObjectSkillsTable();
+	// Queries the table with a custom "where" clause
 	std::vector<CDObjectSkills> Query(std::function<bool(CDObjectSkills)> predicate);
 
-	//! Gets all the entries in the table
-	/*!
-	  \return The entries
-	 */
+	// Gets all the entries in the table
 	std::vector<CDObjectSkills> GetEntries(void) const;
 
 };