Adding support to extract values from message header.#9096

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kishoreg wants to merge 3 commits intomasterfrom

Commits on Jul 23, 2022

Adding support to extract values from message header.. initial support for kafka headers
kishoreg
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Commits on Jul 27, 2022

Adding few udf to convert byte[] to string and also prefixing the header fields with header$ prefix to seperate them from the keys in message payload
kishoreg
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Commits on Jul 28, 2022

adding null check for row metadata
kishoreg
committed