Remove legacy AttackTracer repo content

src/OCSentinelCli/BuildMetadata.cs

@@ -0,0 +1,11 @@
+using System.Reflection;
+
+namespace OCSentinelCli;
+
+internal static class BuildMetadata
+{
+    public static string Version =>
+        Assembly.GetExecutingAssembly().GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion
+        ?? Assembly.GetExecutingAssembly().GetName().Version?.ToString()
+        ?? "0.0.0";
+}