[Storehouse] 015 - add util to extract payloadless - #8608

[Storehouse] 015 - add util to extract payloadless#8608

zhangchiqing wants to merge 2 commits into

leo/payloadless-util-create-v6-checkpoint-from-v7onflow/flow-go:leo/payloadless-util-create-v6-checkpoint-from-v7from

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