Meggie

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- Update mne dependency to >=0.22.0

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- Remove workspace attribute from experiment and use path instead
- Do not require comment attribute to be set when creating Evoked
- Try to get default channel groups from active subject if channel groups not set
- Add tests for utilities, experiment.py, subject.py and datatypes
- Remove old stc code to separate branch
- Add new import possibilities by using read_raw instead of read_raw_fif
- If both EEG and MEG data present, show both when plotting topography
- Add event delay for epoch creation
- Fix mne_wrapper pkgutil bug
- Improve exception messaging in many places

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- Fix broken import

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- Add single channel plotting functionality for evokeds
- Add radius setting for evoked topomaps (to allow different "skirts")
- Add more information to info boxes
- Overwrite when saving epochs
- Fix import bug in montage dialog
- Fix reject param ticks bug

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- Use Qt5 backend instead off Tkinter for matplotlib (fixes threading issues, hopefully not much slower)
- Implement plugin discovery
- Try printing more info on terminal on crash even on non-debug session
- Update to mne==0.20.0
- Replace layouts with default montages (mne is deprecating layouts)
- Add dialog for setting and computing channel average groups
- Store spectrums under the hood only in power units
- Fix couple of crashes
- Clean up iterate_topography code and name cleaning code
- In saved csvs, use different columns for ch_name, ch_type, subject name etc.

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- Improve memory handling