Add support for out-of-band pickling (pickle 5) in PickleCoder
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core
improvement
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python
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- Java
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Description
dev@ discussion: https://lists.apache.org/thread.html/r266f37640901544927205b913d4903340d6c59c3d94905e5dda0db42%40%3Cdev.beam.apache.org%3E
PickleCoder should support out-of-band pickling to avoid unnecessary memory copies for types that support it (including numpy and pandas types).
Imported from Jira [BEAM-12418](https://issues.apache.org/jira/browse/BEAM-12418). Original Jira may contain additional context.
Reported by: bhulette.
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