Updated VideoCodecBase.cs and ZoomRooms.cs to resolve an issue with dialing the currently scheduled meetings.

VideoCodecBase.cs changes:
1. Moved the trilist.SetSigFalseActions for DialMeeting 1-3 from the UpdateMeetinsgList mehtod to the LinkVideoCodecScheduleToApi method.
- This was necessary to resolve an issue with dialing current meetings.
- When the SetSigFalseActions where located in the UpdateMeetingsList, they were using the codec.CodecSchedule.Meetings to dial, which was not updated based on the time of day.
2. Turned the local var currentMeetings into a private list, _currentMeetings, that can be updated by UpdateMeetingsList and then used in LinkVideoCodecScheduleToApi when the trilist actions are executed.
3. Added debug statements to help narrow down the issue and verify the data.
ZoomRoom.cs changes:
1. Added debug statement to Dial(Meeting meeting) method to confirm the data passed from LinkVideoCodecScheduleToApi was matching the _currentMeetings list data.

essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/ZoomRoom/ZoomRoom.cs

@@ -1655,6 +1655,7 @@ namespace PepperDash.Essentials.Devices.Common.VideoCodec.ZoomRoom
 
         public override void Dial(Meeting meeting)
         {
+			Debug.Console(1, this,"Dialing meeting.Id: {0} Title: {1}", meeting.Id, meeting.Title);
             SendText(string.Format("zCommand Dial Start meetingNumber: {0}", meeting.Id));
         }