Add SMART.KASAHUB to the map of supported devices.
This also adds fixture files for KH100, KE100, and T310, and adapts affected modules and their tests accordingly.
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Co-authored-by: Steven B <51370195+sdb9696@users.noreply.github.com>
This should prevent child fixtures from hubs breaking tests due to
missing discovery info. To get these devices in `filter_fixtures`
include protocol string of `SMART.CHILD`.
