GCSampler - CountData calculated as negative causes exception

[nr-ahemsath]

Description

We are unsure of the reason, but the GC Sampler is trying to create a count metric that is a negative value. As a result, the GC Sampler shuts down (because too many exceptions have been thrown).

Here is where the exception is being thrown from:

newrelic-dotnet-agent/src/Agent/NewRelic/Agent/Core/WireModels/MetricDataWireModel.cs

Line 117 in 707a226

throw new ArgumentException(CannotBeNegative, nameof(callCount));

Expected Behavior

Since many of the count values are delta values from the prior value, intercept a negative value and record it as 0 in the event.
When doing so, add a log message (finest) indicating the Metric and requested value that was switched to 0.

Steps to Reproduce

Unknown at this point.

[JoshuaColeman]

Hey @angelatan2! I have a potential solution for this in #525