Add MkvEditCommand

MkvToolnixWrapper/Shared/MkvExtensions.cs

@@ -0,0 +1,13 @@
+namespace MkvPropEditWrapper.Shared;
+
+public static class MkvExtensions
+{
+    public static bool FromFlagBoolean(this string value) => value switch
+    {
+        "1" => true,
+        "0" => false,
+        _ => throw new ArgumentException("Value must be '0' or '1'", nameof(value))
+    };
+
+    public static string ToFlagBoolean(this bool value) => value ? "1" : "0";
+}