Implemented storage update interval at the UI side (#1706)

* Minor refactoring for #1699

* Implemented storage update interval for the UI

* Revert "Implemented storage update interval for the UI"

This reverts commit 977ff2f5518d420e35cadad17054f4e69c260df1.

* Revert "Minor refactoring for #1699"

This reverts commit 923f6d6f636a2a10ff44b8c23f84e8985ccbf667.

* Made update interval configurable for storage devices

* Changed label text m to min for consistency

* Revised 8e6c669 as requested

* ATA Update interval defaults to 1s in the UI

* Simplified storage update interval menu

LibreHardwareMonitorLib/Hardware/Storage/ATAStorage.cs

@@ -22,6 +22,9 @@ public abstract class AtaStorage : AbstractStorage
 
     private IDictionary<SmartAttribute, Sensor> _sensors;
 
+    private static TimeSpan _throttleInterval = TimeSpan.Zero;
+    private DateTime _lastUpdate = DateTime.MinValue;
+
     /// <summary>
     /// Gets the SMART data.
     /// </summary>
@@ -187,10 +190,28 @@ public abstract class AtaStorage : AbstractStorage
         base.CreateSensors();
     }
 
+    public static TimeSpan ThrottleInterval
+    {
+        get
+        {
+            return _throttleInterval;
+        }
+        set
+        {
+            _throttleInterval = value;
+        }
+    }
+
     protected virtual void UpdateAdditionalSensors(Kernel32.SMART_ATTRIBUTE[] values) { }
 
     protected override void UpdateSensors()
     {
+        if (DateTime.UtcNow - _lastUpdate < ThrottleInterval)
+        {
+            return;
+        }
+        _lastUpdate = DateTime.UtcNow;
+
         if (Smart.IsValid)
         {
             Kernel32.SMART_ATTRIBUTE[] smartAttributes = Smart.ReadSmartData();
@@ -289,4 +310,4 @@ public abstract class AtaStorage : AbstractStorage
         Smart.Close();
         base.Close();
     }
-}
+}