Send telemetry report for cpu usage and memory usage

[praveen-influx]

This issue will cover sending cpu/memory usage to the server, along with static values covered in issue

{
  // other values
  "cpuUtilizationPercent": 89,
  "memoryUsage": 240,
  "memoryUsagePercent": 23,
}

[pauldix]

For memoryUsage put the units at the end like memoryUsageMB or something like that. Given it happens once per hour, it'll need to be either a sample or an average over the hour. Could opt for a min/avg/max over the period with measurements taken every minute, but the report sent once per hour.

[praveen-influx]

    // cpu
    pub cpu_utilization_percent_min: f64,
    pub cpu_utilization_percent_max: f64,
    pub cpu_utilization_percent_avg: f64,
    // mem
    pub memory_used_mb_min: u64,
    pub memory_used_mb_max: u64,
    pub memory_used_mb_avg: u64,

That is what has been captured as part of PR that's been merged.