Add more raw datasets to smaug

[mvdm]

• [x] 30k continuous data with .t files from Jimmie
• [ ] Locate DVDs with raw data for R064 (somehow ntt files got overwritten on server)
• [ ] Upload R042 pseudo-raw data with and without artifacts (w/text file description)
• [ ] Where is the raw data for @jgmaz eLife paper? (recorded with Amplipex data)

[yarikoptic]

Re Amplipex: filed an issue asking for support in neo: https://github.com/NeuralEnsemble/python-neo/issues/813