[ENH] updated dba to support custom parameters

[chrisholder]

Reference Issues/PRs

What does this implement/fix? Explain your changes.

When the distance module was updated support for custom kwargs for the averaging method in kmeans was disabled. This PR updates kmeans to support custom averaging kwargs with the new distance module.

Does your contribution introduce a new dependency? If yes, which one?

What should a reviewer concentrate their feedback on?

Did you add any tests for the change?

Any other comments?

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• The PR title starts with either [ENH], [MNT], [DOC], or [BUG] indicating whether the PR topic is related to enhancement, maintenance, documentation, or bug.
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[TonyBagnall]

we dont want the experiments directory here really, it can go in tsml-eval

[TonyBagnall]

should the file still be called dba? Cant we use if for mba etc?