Unified CStack ammo, casts and counterattacks

* it is possible now to add casts and shoots OTF (f.e. with spell bonus)

Centralized stack 'ammo' loading from bonus system.
* introduced small proxy class for local bonus cache
(no need to use global cache if particular selector used on node only in one place)
* handle killing resurrected creatures
* use IBonusBearer::MaxHealth() where possible
* Fixed https://bugs.vcmi.eu/view.php?id=2486
* Possible fix for 0 HP after resurrection.
* Hack-fixed https://bugs.vcmi.eu/view.php?id=2584
* Unified CStack health API
* Use CHealth for CStack count and health points
* increased SERIALIZATION_VERSION

lib/NetPacksBase.h

@@ -189,3 +189,22 @@ struct ArtifactLocation
 		h & artHolder & slot;
 	}
 };
+
+class CHealthInfo
+{
+public:
+	CHealthInfo():
+		stackId(0), delta(0), firstHPleft(0), fullUnits(0), resurrected(0)
+	{
+	}
+	uint32_t stackId;
+	int32_t delta;
+	int32_t firstHPleft;
+	int32_t fullUnits;
+	int32_t resurrected;
+
+	template <typename Handler> void serialize(Handler & h, const int version)
+	{
+		h & stackId & delta & firstHPleft & fullUnits & resurrected;
+	}
+};