[8.15](backport #40456) [vSphere][resourcepool] Add support for new metrics in resourcepool metricset

[mergify]

• Enhancement

Description

Added following new metrics for the ResourcePool datastream in the vSphere metricbeat module. added new performance API to get more detailled info from the vSphere.

Metrics Type	Metrics	API	Field Mappings
Resource pools CPU/memory/status	OverallCpuUsage	Quickstats	cpu.usage.mhz
	OverallCpuDemand	Quickstats	cpu.demand.mhz
	GuestMemoryUsage	Quickstats	memory.usage.guest.bytes
	HostMemoryUsage	Quickstats	memory.usage.host.bytes
	DistributedCpuEntitlement	Quickstats	cpu.entitlement.mhz
	DistributedMemoryEntitlement	Quickstats	memory.entitlement.bytes
	StaticCpuEntitlement	Quickstats	cpu.entitlement.static.mhz
	StaticMemoryEntitlement	Quickstats	memory.entitlement.static.mhz
	PrivateMemory	Quickstats	memory.private.bytes
	SharedMemory	Quickstats	memory.shared.bytes
	SwappedMemory	Quickstats	memory.swapped.bytes
	BalloonedMemory	Quickstats	memory.ballooned.bytes
	OverheadMemory	Quickstats	memory.overhead.bytes
	ConsumedOverheadMemory	Quickstats	memory.overhead.consumed.bytes
	CompressedMemory	Quickstats	memory.compressed.bytes
	reourcepool.status	Summary	status
	resourcepool.Vm	Summary	vm.names
			vm.count

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files
• I have added tests that prove my fix is effective or that my feature works
• I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

Related issues

• Relates https://github.com/elastic/obs-integration-team/issues/21

---

This is an automatic backport of pull request #40456 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 1f77e6e has failed:

On branch mergify/bp/8.15/pr-40456
Your branch is up to date with 'origin/8.15'.

You are currently cherry-picking commit 1f77e6e69c.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   CHANGELOG.next.asciidoc
	modified:   metricbeat/docs/fields.asciidoc
	new file:   metricbeat/docs/modules/vsphere/resourcepool.asciidoc
	new file:   metricbeat/module/vsphere/resourcepool/_meta/data.json
	new file:   metricbeat/module/vsphere/resourcepool/_meta/docs.asciidoc
	new file:   metricbeat/module/vsphere/resourcepool/_meta/fields.yml
	new file:   metricbeat/module/vsphere/resourcepool/data.go
	new file:   metricbeat/module/vsphere/resourcepool/data_test.go
	new file:   metricbeat/module/vsphere/resourcepool/resourcepool.go
	new file:   metricbeat/module/vsphere/resourcepool/resourcepool_test.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   metricbeat/docs/modules/vsphere.asciidoc
	both modified:   metricbeat/docs/modules_list.asciidoc
	both modified:   metricbeat/include/list_common.go
	both modified:   metricbeat/metricbeat.reference.yml
	both modified:   metricbeat/module/vsphere/_meta/README.md
	both modified:   metricbeat/module/vsphere/_meta/config.reference.yml
	both modified:   metricbeat/module/vsphere/_meta/config.yml
	both modified:   metricbeat/module/vsphere/_meta/docs.asciidoc
	both modified:   metricbeat/module/vsphere/fields.go
	both modified:   metricbeat/modules.d/vsphere.yml.disabled
	both modified:   x-pack/metricbeat/metricbeat.reference.yml

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[botelastic]

This pull request doesn't have a Team:<team> label.

[mergify]

This pull request is now in conflicts. Could you fix it? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b mergify/bp/8.15/pr-40456 upstream/mergify/bp/8.15/pr-40456
git merge upstream/8.15
git push upstream mergify/bp/8.15/pr-40456

[ishleenk17]

Closing this in lieu of
#40825