(4) Move transaction/span related functions from Hub to Scope #4315

Job	Run time
common pinned, python 3.5, ubuntu-20.04	3m 14s
common pinned, python 3.6, ubuntu-20.04	3m 19s
common pinned, python 3.7, ubuntu-20.04	2m 54s
common py27, python 2.7	2m 55s
common pinned, python 3.8, ubuntu-20.04	3m 3s
common pinned, python 3.9, ubuntu-20.04	3m 20s
common pinned, python 3.10, ubuntu-20.04	3m 5s
common pinned, python 3.11, ubuntu-20.04	3m 3s
common pinned, python 3.12, ubuntu-20.04	5m 16s
All common tests passed or skipped	1s
	30m 10s

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