Add Porcess.KillBySignal

Program.cs

@@ -13,10 +13,21 @@ using System.Threading;
 using Salaros.Configuration;
 
 using System.CommandLine;
+using System.Runtime.InteropServices;
 
 using Color = System.Drawing.Color;
+using Process = System.Diagnostics.Process;
 
 namespace i3csstatus {
+	static class ProcesExtended
+	{
+		[DllImport("libc", SetLastError = true)]
+		public static extern int kill(int pid, int sig);
+		public static int KillBySignal(this Process p, int sig)
+		{
+			return kill(p.Id, sig);
+		}
+	}
 	static class ColorToHexExtended
 	{
 		static public string ToHex(this Color c)