Jsonpath: add support for OR operation in list filters

JsonPath describes a "or operation" for list filters that is not implemented in kubectl

I would like to add the possibility to do the following:

`kubectl get deploy -o jsonpath='{.items[?(@.metadata.name=="foo") || ?(@.metadata.name=="bar")].metadata.name}`

With this feature one could do more complex filtering without having to do more than one kubectl request

Start by locating kubectl's JSONPath list-filter implementation and its existing filter tests. Compare the current behavior with the issue's example using ||; done means the example can select deployments named foo or bar in a single kubectl request.

Written by the indexing model from the issue text.