Introduce PeepNamesObjects for 'real' names of peeps (#22758)

* Add initial PeepNamesObject implementation

* Add peep names object to default objects

* Append peep names object to object list for older saves

* Deduplicate AppendRequiredObjects functions

* Remove built-in 'real name' tables

* Increment park version; introduce kPeepNamesObjectsVersion

* Update objects dependency to v1.4.8

src/openrct2/object/ObjectFactory.cpp

@@ -36,6 +36,7 @@
 #include "ObjectLimits.h"
 #include "ObjectList.h"
 #include "PathAdditionObject.h"
+#include "PeepNamesObject.h"
 #include "RideObject.h"
 #include "SceneryGroupObject.h"
 #include "SmallSceneryObject.h"
@@ -384,6 +385,9 @@ namespace OpenRCT2::ObjectFactory
             case ObjectType::Audio:
                 result = std::make_unique<AudioObject>();
                 break;
+            case ObjectType::PeepNames:
+                result = std::make_unique<PeepNamesObject>();
+                break;
             default:
                 throw std::runtime_error("Invalid object type");
         }
@@ -424,6 +428,8 @@ namespace OpenRCT2::ObjectFactory
             return ObjectType::FootpathRailings;
         if (s == "audio")
             return ObjectType::Audio;
+        if (s == "peep_names")
+            return ObjectType::PeepNames;
         return ObjectType::None;
     }