Introduce label "node.machine.sapcloud.io/machine-deployment-name" in Machine linking to grand-parent MachineDeployment

[elankath]

How to categorize this issue?

/area TODO
/kind enhancement
/priority 3

What would you like to be added:

• Introduce a label node.machine.sapcloud.io/machine-deployment-name on the Machine object which will always be set by the MachineSet controller.
• Deprecate the need for the legacy name label to be set the Machine object for correct functionality of the MCM.
• Remove the need for template.metadata.labels.name to be mandatorily set on the MachineDeployment object. This is an un-necessary "hidden" requirement that standalone users of the MCM are unaware of.

Why is this needed:

See: #1077