chore: Move database storage containers to be translation unit local to allow for safe references (#1434)

* Move CDClientManager to be a namespace

Tested that worlds still load data as expected.  Had no use being a singleton anyways.

* Move cdclient data storage to tu local containers

Allows some data from these containers to be saved on object by reference instead of always needing to copy.

iteration 2

- move all unnamed namespace containers to a singular spot
- use macro for template specialization and variable declaration
- use templates to allow for as little copy paste of types and functions as possible

* remember to use typename!

compiler believes T::StorageType is accessing a member, not a type.

* Update CDClientManager.cpp

* move to cpp?

dDatabase/CDClientDatabase/CDClientTables/CDDestructibleComponentTable.h

@@ -20,14 +20,9 @@ struct CDDestructibleComponent {
 	int32_t difficultyLevel;               //!< ???
 };
 
-class CDDestructibleComponentTable : public CDTable<CDDestructibleComponentTable> {
-private:
-	std::vector<CDDestructibleComponent> entries;
-
+class CDDestructibleComponentTable : public CDTable<CDDestructibleComponentTable, std::vector<CDDestructibleComponent>> {
 public:
 	void LoadValuesFromDatabase();
 	// Queries the table with a custom "where" clause
 	std::vector<CDDestructibleComponent> Query(std::function<bool(CDDestructibleComponent)> predicate);
-
-	const std::vector<CDDestructibleComponent>& GetEntries(void) const;
 };