Netdata Plugin helper for Nim

Based on: https://github.com/firehol/netdata/wiki/External-Plugins

A plugin instance can create multiple charts. Each chart can have multiple dimensions.

Charts and dimensions need to be created in order and before sending datapoints.

Usage:

import netdata_plugin
var p = newNetdataPlugin("myplugin")
p.addChart("example", "random", "", "Random Numbers Stacked chart",
  "% of random numbers")
p.addDimension("random1", "", ChartAlgorithm.percentage_of_absolute_row)
p.addDimension("random2", "", ChartAlgorithm.incremental)
p.addDimension("random3)
p.sendChartDP("example", "random", {
  "random1": 1,
  "random2": 2,
  "random3": 3,
})

Output:

CHART example.random '' 'Random Numbers Stacked chart' '% of random numbers'
DIMENSION random1 '' percentage-of-absolute-row 1 1
DIMENSION random2 '' incremental 1 1
DIMENSION random3 '' absolute 1 1
BEGIN example.random
SET random1 = 1
SET random2 = 2
SET random3 = 3
END

The examples/ directory contains a plugin for the SDS011 particulate sensor