Entities redesign and a few ERM features

* Made most Handlers derived from CHandlerBase and moved service API there.
* Declared existing Entity APIs.
* Added basic script context caching
* Started Lua script module
* Started Lua spell effect API
* Started script state persistence
* Started battle info callback binding
* CommitPackage removed
* Extracted spells::Caster to own header; Expanded Spell API.
* implemented !!MC:S, !!FU:E, !!FU:P, !!MA, !!VR:H, !!VR:C
* !!BU:C, !!BU:E, !!BU:G, !!BU:M implemented
* Allow use of "MC:S@varName@" to declare normal variable (technically v-variable with string key)
* Re-enabled VERM macros.
* !?GM0 added
* !?TM implemented
* Added !!MF:N
* Started !?OB, !!BM, !!HE, !!OW, !!UN
* Added basic support of w-variables
* Added support for ERM indirect variables
* Made !?FU regular trigger
* !!re (ERA loop receiver) implemented
* Fixed ERM receivers with zero args.

lib/mapping/CMap.cpp

@@ -519,11 +519,11 @@ void CMap::checkForObjectives()
 			switch (cond.condition)
 			{
 				case EventCondition::HAVE_ARTIFACT:
-					boost::algorithm::replace_first(event.onFulfill, "%s", VLC->arth->artifacts[cond.objectType]->Name());
+					boost::algorithm::replace_first(event.onFulfill, "%s", VLC->arth->objects[cond.objectType]->getName());
 					break;
 
 				case EventCondition::HAVE_CREATURES:
-					boost::algorithm::replace_first(event.onFulfill, "%s", VLC->creh->creatures[cond.objectType]->nameSing);
+					boost::algorithm::replace_first(event.onFulfill, "%s", VLC->creh->objects[cond.objectType]->nameSing);
 					boost::algorithm::replace_first(event.onFulfill, "%d", boost::lexical_cast<std::string>(cond.value));
 					break;