Neurocaps

🐛 Fixes
- Reference before assignment issue when `use_confounds` is False do to `censor` only being when `use_confounds`
is True.

**Pylint used to check for potential errors and also used to clean code**

♻ Changed
- `parcel_approach` no longer required when initializing `CAP`. It is still required for some plotting methods and the
user will be warned if it is None. This allows the use of certain methods without having to keep adding this parameter.
- For `CAP.calculate_metrics`, `file_name` parameter changed to `prefix_file_name` to better reflect that it will be
added as a prefix to the csv files.

🐛 Fixes
- Fixed issue with no context manager or closing json file in `TimeseriesExtractor` where if `tr` is not specified,
the bold metadata is used to extract the tr. However, this was done without a context manager to ensure the file closes
properly afterwards.
- All imports, except for `pybids` are no longer imported in each function and are now at top level.

🐛 Fixes
- Adds a "mode" kwargs to `CAP.caps2radar` to override default plotly drawing behaviors and sets `use_scatterpolar`
argument to False.

💻 Metadata
- Significant improvements to docstrings and added homepage.

🐛 Fixes
- Uses plotly.offline to open plots generated by `CAP.caps2radar` in default browser when Python is non-interactive
to prevent hanging issue.

♻ Changed
- Changed `vmax` and `vmin` kwargs in `CAP.caps2surf` to `color_range`
- In `CAP.caps2surf` the function no longer rounds max and min values and restricts range to -1 and 1 if the rounded
value is 0.
It just uses the max and min values from the data.