Should FilteringTokenFilter handle positionLength [LUCENE-8250]

FilteringTokenFilter does not handle the position length graph attribute when removing a token from the stream. This doesn't work well with graph token stream that sets position length since removing a token from the stream can invalidate the position length set on the previous tokens.
This issue was first discussed in #5137 but it has a different purpose which is why I am opening a new issue here.

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Migrated from [LUCENE-8250](https://issues.apache.org/jira/browse/LUCENE-8250) by Jim Ferenczi (@jimczi), updated Apr 13 2018
Attachments: [LUCENE-8250.patch](https://apache.github.io/lucene-jira-archive/attachments/LUCENE-8250/LUCENE-8250.patch)

Start by locating FilteringTokenFilter and read how it removes tokens while position lengths are preserved. Review the issue's graph-token-stream behavior and the attached LUCENE-8250.patch; done means removed tokens no longer invalidate position lengths on preceding tokens.

Written by the indexing model from the issue text.