added parser interface

[henderiw]

This is a generic parser interface that would be used by all libraries that operation as krm functions

[johnbelamaric]

/verify-owners

[johnbelamaric]

I was thinking something like this would be in the nephio/api repo

[henderiw]

this is part of the library and we created a lib under krm-functions as the code is more close to the functions versus the api.
In the api repo we have added the getters, but the this is something to consume a library in a fn. So we believe this is a better fit in the function library.

So we beleive something like this make sense:
nephio/krm-functions/lib where a set of helpers libraries reside.

[gvbalaji]

Thanks. /lgtm

[henderiw]

/assign @johnbelamaric

[johnbelamaric]

Can you rebase?

[johnbelamaric]

Let's standardize on "The Nephio Authors"

Then I can merge this

[johnbelamaric]

/lgtm
/approve

[nephio-prow]

[APPROVALNOTIFIER] This PR is APPROVED

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