Cannot load a spatial structures or a reactions BB

[PavelBal]

From the same project as in #1354

1. Save the spatial structure as PKML
2. Create a new module and try to load it as PKML:

Application:
MoBi® 12.0.263

Unable to find a serializer for 'OSPSuite.Core.Domain.Builder.SpatialStructure'

Stack trace:

at OSPSuite.Serializer.Xml.XmlSerializerRepository`1.SerializerFor(Type typeOfObjectToSerialize)
   at MoBi.Core.Serialization.Xml.Services.XmlSerializationService.serializeFor(Type type)
   at MoBi.Core.Serialization.Xml.Services.XmlSerializationService.ElementNameFor(Type type)
   at MoBi.Presentation.Tasks.SerializationTask.retrieveElementsToDeserializeFromFile[T](XElement xelRoot, String fileName)
   at MoBi.Presentation.Tasks.SerializationTask.LoadMany[T](String fileName, Boolean resetIds)
   at MoBi.Presentation.Tasks.Interaction.InteractionTask.LoadItems[T](String filename)
   at MoBi.Presentation.Tasks.Interaction.InteractionTasksForModule.loadBuildingBlock(BuildingBlockType buildingBlockType, String filename)
   at MoBi.Presentation.Tasks.Interaction.InteractionTasksForModule.loadBuildingBlocksToModule(Module module, Func`1 getFilename)
   at MoBi.Presentation.Tasks.Interaction.InteractionTasksForModule.LoadBuildingBlocksToModule(Module module)
   at MoBi.Presentation.UICommand.LoadBuildingBlocksToModuleUICommand.PerformExecute()
   at OSPSuite.Presentation.UICommands.ObjectUICommand`1.Execute()
   at OSPSuite.Presentation.UICommands.UICommandExtensions.ExecuteWithinExceptionHandler(IUICommand uiCommand, IEventPublisher eventPublisher, IChangePropagator changePropagator)

[PavelBal]

Also reactions:

Application:
MoBi® 12.0.263

Unable to find a serializer for 'OSPSuite.Core.Domain.Builder.ReactionBuildingBlock'

Stack trace:

at OSPSuite.Serializer.Xml.XmlSerializerRepository`1.SerializerFor(Type typeOfObjectToSerialize)
   at MoBi.Core.Serialization.Xml.Services.XmlSerializationService.serializeFor(Type type)
   at MoBi.Core.Serialization.Xml.Services.XmlSerializationService.ElementNameFor(Type type)
   at MoBi.Presentation.Tasks.SerializationTask.retrieveElementsToDeserializeFromFile[T](XElement xelRoot, String fileName)
   at MoBi.Presentation.Tasks.SerializationTask.LoadMany[T](String fileName, Boolean resetIds)
   at MoBi.Presentation.Tasks.Interaction.InteractionTask.LoadItems[T](String filename)
   at MoBi.Presentation.Tasks.Interaction.InteractionTasksForModule.loadBuildingBlock(BuildingBlockType buildingBlockType, String filename)
   at MoBi.Presentation.Tasks.Interaction.InteractionTasksForModule.loadBuildingBlocksToModule(Module module, Func`1 getFilename)
   at MoBi.Presentation.Tasks.Interaction.InteractionTasksForModule.LoadBuildingBlocksToModule(Module module)
   at MoBi.Presentation.UICommand.LoadBuildingBlocksToModuleUICommand.PerformExecute()
   at OSPSuite.Presentation.UICommands.ObjectUICommand`1.Execute()
   at OSPSuite.Presentation.UICommands.UICommandExtensions.ExecuteWithinExceptionHandler(IUICommand uiCommand, IEventPublisher eventPublisher, IChangePropagator changePropagator)