Added register collection base methods

Examples/TestRegisters.cs

@@ -47,6 +47,5 @@ namespace Examples {
         [Register(7012)]
         public TimeSpan TestTime { get; private set; }
 
-
     }
 }

MewtocolNet/Mewtocol/MewtocolInterface.cs

@@ -356,6 +356,14 @@ namespace MewtocolNet {
 
             };
 
+            if (collection != null)
+                collection.OnInterfaceLinked(this);
+
+            Connected += (i) => {
+                if(collection != null) 
+                    collection.OnInterfaceLinkedAndOnline(this);
+            };
+
             return this;
 
         }

MewtocolNet/Mewtocol/RegisterAttributes/RegisterCollectionBase.cs

@@ -10,17 +10,34 @@ using System.Threading.Tasks;
 
 namespace MewtocolNet.RegisterAttributes {
 
+    /// <summary>
+    /// A register collection base with full auto read and notification support built in
+    /// </summary>
     public class RegisterCollectionBase : INotifyPropertyChanged {
 
+        /// <summary>
+        /// Reference to its bound interface
+        /// </summary>
         public MewtocolInterface PLCInterface { get; set; }        
 
+        /// <summary>
+        /// Whenever one of its props changes
+        /// </summary>
         public event PropertyChangedEventHandler PropertyChanged;
 
-        internal void TriggerPropertyChanged (string propertyName = null) {
+        /// <summary>
+        /// Triggers a property changed event
+        /// </summary>
+        /// <param name="propertyName">Name of the property to trigger for</param>
+        public void TriggerPropertyChanged (string propertyName = null) {
             var handler = PropertyChanged;
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
         }
 
+        public virtual void OnInterfaceLinked (MewtocolInterface plc) { }
+
+        public virtual void OnInterfaceLinkedAndOnline (MewtocolInterface plc) { }
+
     }
 
 }