[ENH] Adding type hinting for files: aeon/benchmarking/*

[gulshan-123]

Reference Issues/PRs

Fixes #1454 some part

What does this implement/fix? Explain your changes.

I have added type hinting in the files. For this I also needed to import from typing such as List, Union etc.
I have added hints just in the parameter of some functions in the python files.

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

No

Any other comments?

I will work on some other folders if this PR gets done. I am new to Open Source. This is my first contribution and I loved it. Thanks.

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I have added the following labels to this PR based on the title: [ $\color{#FEF1BE}{\textsf{enhancement}}$ ].
I have added the following labels to this PR based on the changes made: [ $\color{#264F59}{\textsf{benchmarking}}$ ]. Feel free to change these if they do not properly represent the PR.

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[gulshan-123]

@baraline @MatthewMiddlehurst @hadifawaz1999 @TonyBagnall Could you please review this PR? I have addressed all the necessary changes. Thanks!