fix SimpleWServer POST

with no Post handler, all POST test failed

Author: stratdev3

src/Servers/SimpleWServer/Program.cs

@@ -5,8 +5,11 @@
 
 var server = new SimpleWServer(IPAddress.Any, port);
 
+
 server.MapGet("/", () => "OK");
 server.MapGet("/{path}", () => "OK");
+server.MapPost("/", () => "OK");
+server.MapPost("/{path}", () => "OK");
 
 Console.WriteLine($"SimpleW listening on http://localhost:{port}");