[DEP] Deprecate simple wrapper transformers

[TonyBagnall]

deprecate transformers we dont want to keep

Removes

• TimeBinning: not used anywhere, not covered by tests
• IndexSubset and ColumnSelect: simple operations
• CosineTransformer: one line scikit wrapper
• SqrtTransformer: one line numpy wrapper
• Augmenters: adds noise to series, not really needed

part of #1446

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[MatthewMiddlehurst]

I don't think they have to be used in the package for them to be useful to have. Some of these seem like they could be useful. Still, happy to deprecate them given they are the old format and can be moved over later.