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/CDScriptComponentTable.cpp

@@ -29,14 +29,6 @@ CDScriptComponentTable::CDScriptComponentTable(void) {
 	tableData.finalize();
 }
 
-//! Destructor
-CDScriptComponentTable::~CDScriptComponentTable(void) {}
-
-//! Returns the table's name
-std::string CDScriptComponentTable::GetName(void) const {
-	return "ScriptComponent";
-}
-
 const CDScriptComponent& CDScriptComponentTable::GetByID(unsigned int id) {
 	std::map<unsigned int, CDScriptComponent>::iterator it = this->entries.find(id);
 	if (it != this->entries.end()) {