factor ClientGameData into Client to reduce data duplication

src/Episode3/BattleRecord.hh

@@ -9,7 +9,7 @@
 #include <string>
 #include <variant>
 
-#include "../Player.hh"
+#include "../PlayerSubordinates.hh"
 
 struct Lobby;
 

src/Episode3/Tournament.cc

@@ -16,7 +16,7 @@ Tournament::PlayerEntry::PlayerEntry(uint32_t serial_number, const string& playe
 Tournament::PlayerEntry::PlayerEntry(shared_ptr<Client> c)
     : serial_number(c->license->serial_number),
       client(c),
-      player_name(c->game_data.character()->disp.name.decode(c->language())) {}
+      player_name(c->character()->disp.name.decode(c->language())) {}
 
 Tournament::PlayerEntry::PlayerEntry(
     shared_ptr<const COMDeckDefinition> com_deck)

src/Episode3/Tournament.hh

@@ -10,10 +10,10 @@
 #include <unordered_set>
 #include <vector>
 
-#include "../Player.hh"
+#include "DataIndexes.hh"
 
 struct Lobby;
-struct Client;
+class Client;
 struct ServerState;
 
 namespace Episode3 {