CloudWatch metrics package

[cam-stitt]

It would be nice to have a metrics implementation for CloudWatch. Ideally, we could utilise aws-sdk-go. We should be able to just use PutMetricData as it creates the metric if it doesn't yet exist. I need to spend some more time looking into how to map Counter, Gauge and Histogram into CloudWatch metrics data types.

[peterbourgon]

Oh hell yeah, I'm all about this. +1000.

[cam-stitt]

I made a start to this. Happy to open a WIP pr to get some feedback on the direction that I am taking. You can see current progress: https://github.com/cam-stitt/kit/blob/cloudwatch-metrics/metrics/cloudwatch/cloudwatch.go

[basvanbeek]

closed by #495