GCP: Create Machine sets manifests

User Story:

As a developer, I want to be able to:

• Create Azure control plane nodes using MachineSets.

so that I can achieve

• More control over the nodes using the MachineAPI Operator.

Acceptance Criteria:

Description of criteria:

• New CRD ControlPlaneMachineSet is used and populated.
• New manifest is created for the ControlPlaneMachineSet.
• Fields required for the CRD are set.

(optional) Out of Scope:

Engineering Details:

• The code for Azure creation of control plane nodes is here: https://github.com/openshift/installer/blob/master/pkg/asset/machines/gcp/machines.go
• Instead of using machineapi.Machine, we need to use the machineapi.ControlPlaneMachineSet
• We might need to update our openshift/api version to get the MachineSet object that we need to use.

This does not require a design proposal.
This does not require a feature gate.