Adding pod_pids_limit for kubelet_config in all modules, examples and autogen

[djsuszi]

it's one of option for kubelet configuration
https://cloud.google.com/kubernetes-engine/docs/how-to/node-system-config
default none
This setting sets the maximum number of process IDs (PIDs) that each Pod can use.
Value must be must be between 1024 and 4194304

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[djsuszi]

created new valid one
#1922