Add Standardize class for Z-Score normalization and update project files

- Implemented the Standardize class for calculating Z-Score normalization over a specified lookback period.
- Updated NDepend badge SVG files to reflect new metrics.
- Modified NDepend project files to reference the updated solution file name.
- Removed outdated documentation files related to indicator proposals and channel documentation remediation.
- Updated workspace configuration to point to the new solution file.

lib/numerics/standardize/Standardize.Quantower.cs

@@ -0,0 +1,62 @@
+using System.Drawing;
+using TradingPlatform.BusinessLayer;
+using static QuanTAlib.IndicatorExtensions;
+
+namespace QuanTAlib;
+
+/// <summary>
+/// STANDARDIZE (Z-Score Normalization) Quantower indicator.
+/// Calculates the z-score of values over a lookback period using sample standard deviation.
+/// </summary>
+public class StandardizeIndicator : Indicator, IWatchlistIndicator
+{
+    [DataSourceInput]
+    public SourceType Source { get; set; } = SourceType.Close;
+
+    [InputParameter("Period", sortIndex: 0, minimum: 2, maximum: 1000, increment: 1)]
+    public int Period { get; set; } = 20;
+
+    [InputParameter("Show Cold Values", sortIndex: 100)]
+    public bool ShowColdValues { get; set; } = true;
+
+    private Standardize? _standardize;
+    private Func<IHistoryItem, double>? _selector;
+
+    public int MinHistoryDepths => Period;
+    public override string ShortName => $"STND({Period})";
+
+    public StandardizeIndicator()
+    {
+        Name = "STANDARDIZE - Z-Score Normalization";
+        Description = "Calculates the z-score of values over a lookback period using sample standard deviation";
+        SeparateWindow = true;
+        OnBackGround = true;
+    }
+
+    protected override void OnInit()
+    {
+        _standardize = new Standardize(Period);
+        _selector = Source.GetPriceSelector();
+
+        AddLineSeries(new LineSeries("Z-Score", Color.Yellow, 2, LineStyle.Solid));
+    }
+
+    protected override void OnUpdate(UpdateArgs args)
+    {
+        if (_standardize == null || _selector == null)
+        {
+            return;
+        }
+
+        var item = HistoricalData[0, SeekOriginHistory.End];
+        double value = _selector(item);
+        bool isNew = args.IsNewBar();
+
+        TValue input = new(item.TimeLeft, value);
+        _standardize.Update(input, isNew);
+
+        bool isHot = _standardize.IsHot;
+
+        LinesSeries[0].SetValue(_standardize.Last.Value, isHot, ShowColdValues);
+    }
+}