Candidates for code reuse

[vreuter]

• Test setup logic
• Chunk file naming logic (CDN uploader and GSA)
• Common options (e.g., Cardano config file)
• Reuse getImmDbTip in get-immdb-tip.hs -- Make chunk-uploader upload the tip #57
• Configuration options and definitions around physical quantities, e.g. time (for example, in threadDelay); this would be particularly beneficial given that the threadDelay from io-classes differs from the threadDelay from base, in that the one from io-classes expects time in units of seconds while the one from base expects microseconds.