[DOC] Add type hints for shapelet-based collection transformation.

[baraline]

Describe the issue

Other modules are increasingly using type hints in the function declaration, the shapelet-based tranformation module should do the same.

Suggest a potential alternative/fix

Add type hints to algorithms in aeon/transformations/collection/shapelet_based. One PR can be opened for each algorithm if preferred, as some are quite large.

Additional context

If you have any question, don't hesitate to ask directly here or contact us on Slack!