Testcase: Security->Security None->007.js

This test consumes all channels except one, by creating a channel and session.

Then it tries to create 5 more channels without session.
Only one channel is left, so the test expects that each new channel reclaims the previous empty (unused) channel.

However, our server defines a minimum age of 2s until a channel can be reused.
The reason for this is as follows:
If there is only one channel left and multiple clients try to connect by calling the sequence OpenSecureChannel, CreateSession,
other clients which also call OpenSecureChannel are "stealing" the channels of valid clients during the normal connect procedure.
To make the connect working reliably a minimum age of the channel is defined before it can be reclaimed.
This avoids this "multiple client interference", and the connection process works for the first client that has created the channel:
first comes, first serve...

The test case should get a configurable delay (default 3s) in the for loop before creating new channels.

This hardcoded delay fixes this issue for us to prove that the solition works:

    addLog( "Step 2: Add 5 more [idle] SecureChannels, which should succeed!" );
    for( i=0; i<5; i++ ) {
        channels.push( new OpenSecureChannelService() );
        createResults.push( channels[channels.length - 1].Execute( { RequestedSecurityPolicyUri: SecurityPolicy.None, MessageSecurityMode: MessageSecurityMode.None } ) );
        UaDateTime.CountDown({ Seconds: 3, Message: "wait to expire channel" }); // <--- new delay
    }