Enhance Pod::Simple to support select() like Pod::Parser

[khwilliamson]

This is in the old tracker

https://rt.cpan.org/Ticket/Display.html?id=41995

[khwilliamson]

And is the only non-stalled issue there

[khwilliamson]

With the release of 3.36, this becomes easier to do

[haarg]

Is this still something that is desired? I've written an implementation of this as an external module. I wasn't sure what I wanted to do with it, but hadn't considered bringing it directly into Pod::Simple until noticing this issue.

My module is at https://github.com/haarg/Pod-Simple-Filter. Some parts of it are written a bit oddly because I wanted to make it usable with arbitrary Pod::Simple subclasses, which required C3 MRO, but also wanted it to be usable on older perl versions where that was not available. Bringing it into Pod::Simple directly would eliminate these complications.

[khwilliamson]

I don't see why not bring this in directly

[haarg]

I've written an implementation of this: #154

It still needs some work on documentation, tests, and organization. But any feedback would be welcome.