Clock implementation is faulty

[SergeyKanzhelev]

This clock implementation is faulty:
https://github.com/Microsoft/ApplicationInsights-dotnet/blob/1ccd5b466451db1884b242b6a58b3e9401a1fbcf/src/Core/Managed/Shared/Extensibility/Implementation/Clock.cs#L31

This implementation will accumulate error when windows adjusts time on the computer:

public DateTimeOffset Time 
{ 
    get { return InitialTimeStamp + OffsetStopwatch.Elapsed; } 
} 

[SergeyKanzhelev]

Same in OperationWatch in server:

        public static DateTimeOffset Timestamp(long elapsedTicks)
        {
            // Stopwatch ticks are different from DateTime.Ticks. 
            // Each tick in the DateTime.Ticks value represents one 100-nanosecond interval. 
            // Each tick in the ElapsedTicks value represents the time interval equal to 
            // 1 second divided by the Frequency.
            return StartTime.AddTicks(Convert.ToInt64(elapsedTicks * HundredNanosecondsPerTick));
        }

[abaranch]

CoreSDK fixed. OperationWatch is not fixed.

[cijothomas]

Closing this issue as this is fixed for base sdk. For web sdk, new issue is opened: microsoft/ApplicationInsights-dotnet-server#286