Tag log messages with the UID of the current outer run

[d-perl]

Fixes #1132

Adds a callback to set a tag on log messages for the current run based on a metadata field, using the bluesky UID for the outer run of each experiment

To test:

1. Run tests

[noemifrisina]

Looks okay, tests pass.

[DominicOram]

Do we really need SET_LOG_UID_TAG? Can't we in the callback log with the outermost id?

class LogUidTaggingCallback(CallbackBase):
    def __init__(self) -> None:
        self.run_uid = None

    def start(self, doc: RunStart):
        if self.run_uid is None:
            self.run_uid = doc.get("uid")
            run_uid_filter.run_uid = self.run_uid

    def stop(self, doc: RunStop):
        if doc.get("run_start") == self.run_uid:
            self.run_uid = None
            run_uid_filter.run_uid = None

I don't like that the plans now have to have knowledge of what the callbacks are doing re logging

[d-perl]

@DominicOram Doh, of course. Supplementary PR here: #1233

[DominicOram]

Thank you!