Store bot reaction data in S3 to make A/B testing and behavioural data analysis possible

[teremterem]

Examples of this kind of data may include:

• which algorithm was used to produce a given suggestion
• bot responses

Folder structure may look like this (meant to be aligned with #35):

• bot{id} / chat{id} / user{user_id} / {yyyy} / {mm} / {dd} / bot / {zero_paddedtimestamp}_b\{uuid}

{uuid} (and maybe {zero_padded_timestamp}) should correspond to telegram update stored as part of #35 that is related to this data.

[teremterem]

swiper_chat_data is being saved to a flat folder.