ServerApplication has no pidfile option on windows

[aleks-f]

• Add /pidfile option on Windows

poco/Util/src/ServerApplication.cpp

Lines 363 to 394 in 4552df2

	options.addOption(
	Option("registerService"s, ""s, "Register the application as a service."s)
	.required(false)
	.repeatable(false)
	.callback(OptionCallback<ServerApplication>(this, &ServerApplication::handleRegisterService)));
	options.addOption(
	Option("unregisterService"s, ""s, "Unregister the application as a service."s)
	.required(false)
	.repeatable(false)
	.callback(OptionCallback<ServerApplication>(this, &ServerApplication::handleUnregisterService)));
	options.addOption(
	Option("displayName"s, ""s, "Specify a display name for the service (only with /registerService)."s)
	.required(false)
	.repeatable(false)
	.argument("name"s)
	.callback(OptionCallback<ServerApplication>(this, &ServerApplication::handleDisplayName)));
	options.addOption(
	Option("description"s, ""s, "Specify a description for the service (only with /registerService)."s)
	.required(false)
	.repeatable(false)
	.argument("text"s)
	.callback(OptionCallback<ServerApplication>(this, &ServerApplication::handleDescription)));
	options.addOption(
	Option("startup"s, ""s, "Specify the startup mode for the service (only with /registerService)."s)
	.required(false)
	.repeatable(false)
	.argument("automatic|manual"s)
	.callback(OptionCallback<ServerApplication>(this, &ServerApplication::handleStartup)));