Replace json-influx with official influxdb package

[otisg]

Got this warning while installing Logagent:
npm WARN deprecated [email protected]: this package has been deprecated, you should use influxdb official npm pkg

Maybe there was a reason we used json-influx? Or maybe it just wasn't deprecated when we used it, @megastef ?

[megastef]

We use the json-influx package to create influx format out of JSON objects, the transport is done via http and repeating http requests / buffering.

Influx client might require a schema definition upfront and configuration will be more complicated. Sure, we could evaluate a move to official InfluxDB client.

Another way might be to maintain the json-influx package ...

[megastef]

+1 to rewrite the influx-output plugin with node-influx.