Implemented and fixed all code required to run at least a single turn.

tests/TestLibrary/TestLibrary.cpp

@@ -52,8 +52,8 @@ static TypeLibrary* BuildTypeLibrary() {
 static BattleLibrary* BuildLibrary() {
     auto l = new DataLibrary(LibrarySettings(100, 4), BuildSpeciesLibrary(), BuildAttackLibrary(), BuildItemLibrary(),
                              BuildGrowthRateLibrary(), BuildTypeLibrary());
-    auto battleLib = new BattleLibrary(l, new BattleStatCalculator(), new DamageLibrary(), new CriticalLibrary(),
-                                       new ScriptResolver());
+    auto statCalc = new BattleStatCalculator();
+    auto battleLib = new BattleLibrary(l, statCalc, new DamageLibrary(), new CriticalLibrary(), new ScriptResolver());
     return battleLib;
 }