chore: Move static Player functions and internal linkage to manager class (#1412)

* Moving and organizing Player code

- Move code to CharacterComponent
- Remove extraneous interfaces
- Simplify some code greatly
- Change some types to return and take in const ref (only structs larger than 8 bytes benefit from this change.)
- Update code to use CharacterComponent for sending to zone instead of Player*.

* Moving and organizing Player code

- Move code to CharacterComponent
- Remove extraneous interfaces
- Simplify some code greatly
- Change some types to return and take in const ref (only structs larger than 8 bytes benefit from this change.)
- Update code to use CharacterComponent for sending to zone instead of Player*.
- Remove static storage container (static containers can be destroyed before exit/terminate handler executes)

* remove player cast

* Remove extra includes

* Add a player manager

Used for the static Player functions.  Further removes stuff from the Player class/file.

dGame/PlayerManager.cpp

@@ -0,0 +1,65 @@
+#include "PlayerManager.h"
+
+#include "Character.h"
+#include "Player.h"
+#include "User.h"
+#include "UserManager.h"
+#include "eReplicaComponentType.h"
+
+namespace {
+	std::vector<Player*> m_Players;
+};
+
+const std::vector<Player*>& PlayerManager::GetAllPlayers() {
+	return m_Players;
+}
+
+void PlayerManager::AddPlayer(Player* player) {
+	const auto& iter = std::find(m_Players.begin(), m_Players.end(), player);
+
+	if (iter == m_Players.end()) {
+		m_Players.push_back(player);
+	}
+}
+
+void PlayerManager::RemovePlayer(Player* player) {
+	const auto iter = std::find(m_Players.begin(), m_Players.end(), player);
+
+	if (iter != m_Players.end()) {
+		m_Players.erase(iter);
+	}
+}
+
+Player* PlayerManager::GetPlayer(const SystemAddress& sysAddr) {
+	auto* entity = UserManager::Instance()->GetUser(sysAddr)->GetLastUsedChar()->GetEntity();
+
+	return static_cast<Player*>(entity);
+}
+
+Player* PlayerManager::GetPlayer(const std::string& name) {
+	const auto characters = Game::entityManager->GetEntitiesByComponent(eReplicaComponentType::CHARACTER);
+
+	Player* player = nullptr;
+	for (auto* character : characters) {
+		if (!character->IsPlayer()) continue;
+		
+		if (GeneralUtils::CaseInsensitiveStringCompare(name, character->GetCharacter()->GetName())) {
+			player = dynamic_cast<Player*>(character);
+			break;
+		}
+	}
+
+	return player;
+}
+
+Player* PlayerManager::GetPlayer(LWOOBJID playerID) {
+	Player* playerToReturn = nullptr;
+	for (auto* player : m_Players) {
+		if (player->GetObjectID() == playerID) {
+			playerToReturn = player;
+			break;
+		}
+	}
+
+	return playerToReturn;
+}