Added ItemPerformance to model

eraser-base/src/main/jastadd/Rules.relast

@@ -28,3 +28,5 @@ MultiplyDoubleToStateAction : SetStateAction ::= <Multiplier:double> ;
 
 ItemObserver ::= ;
 rel ItemObserver.TriggeredRule* <-> Rule.Observer* ;
+
+ItemPerformance : LabelledModelElement ::= <EventProcessingFrequency:double> ;

eraser-base/src/main/jastadd/main.relast

 // ----------------    Main    ------------------------------
-Root ::= SmartHomeEntityModel User* MqttRoot InfluxRoot MachineLearningRoot Rule* Location* ;
+Root ::= SmartHomeEntityModel User* MqttRoot InfluxRoot MachineLearningRoot Rule* Location* ItemPerformance*;
 
 // ----------------    Users   ------------------------------
 User : LabelledModelElement ;

eraser-base/src/main/jastadd/shem.relast

@@ -27,6 +27,7 @@ ParameterDefaultValue ::= <Value:String> ;
 
 abstract Item : LabelledModelElement ::= <_fetched_data:boolean> MetaData:ItemMetaData* [ItemObserver] ;
 rel Item.Category? -> ItemCategory ;
+rel Item.ItemPerformance -> ItemPerformance ;
 
 abstract ItemWithBooleanState : Item ::= <_state:boolean> ;
 abstract ItemWithStringState : Item ::= <_state:String> ;