Merge pull request #44 from DataDog/isabelle.sauve/read-version-id

Use VERSION_ID instead of VERSION field for platform version

Merge pull request #43 from DataDog/kserrania/fix-cpu-m1

[macOS M1] Backports from upstream to fix cpu.Info() crashes

Since #40, we can build projects containing this gopsutil fork on macOS M1.

However, using cpu.Info() causes a crash: sysctl hw.cpufrequency doesn't return anything on M1, which makes the following snippet crash:

out, err = invoke.Command(sysctl, "hw.cpufrequency")
	if err != nil {
		return ret, err
	}

	values := strings.Fields(string(out))
	hz, err := strconv.ParseFloat(values[1], 64)
with an index out-of-range error.

This PR:
- backports Lomanic/gopsutil@2ec3560, which uses golang.org/x/sys/unix.Sysctl instead of manual calls to the sysctl binary, preventing the crash
- backports shirou#1192 to not make cpu.Info() return an error when the CPU frequency cannot be found, to prevent the method from erroring on M1.

Merge pull request #40 from DataDog/paulcacheux/generate_types_darwin…

…_amd64

Generate types for darwin/arm64

Merge pull request #42 from DataDog/usama.saqib/amazon-id-cleanup

when platform is detected to be 'amazon' cleanup os-release ID

Merge pull request #42 from DataDog/usama.saqib/amazon-id-cleanup

when platform is detected to be 'amazon' cleanup os-release ID