Rename spikeinterface api to add_nwb

[h-mayorquin]

Making progress in #474

Consistent to the interface `add_to_nwb

[CodyCBakerPhD]

Consistent to the interface `add_to_nwb

For consistency, the method on interfaces and converters is add_to_nwbfile: https://github.com/catalystneuro/neuroconv/blob/main/src/neuroconv/basedatainterface.py#L107

[h-mayorquin]

Consistent to the interface `add_to_nwb

For consistency, the method on interfaces and converters is add_to_nwbfile: https://github.com/catalystneuro/neuroconv/blob/main/src/neuroconv/basedatainterface.py#L107

Correct. Changing to it.

[codecov]

Codecov Report

Attention: Patch coverage is 70.58824% with 20 lines in your changes missing coverage. Please review.

Project coverage is 91.37%. Comparing base (745b90b) to head (cd34e8c).
Report is 2 commits behind head on main.

Files	Patch %	Lines
...c/neuroconv/tools/spikeinterface/spikeinterface.py	67.21%	20 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1015      +/-   ##
==========================================
- Coverage   91.53%   91.37%   -0.16%     
==========================================
  Files         129      129              
  Lines        7852     7860       +8     
==========================================
- Hits         7187     7182       -5     
- Misses        665      678      +13     

Flag	Coverage Δ
unittests	91.37% <70.58%> (-0.16%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...erfaces/ecephys/baserecordingextractorinterface.py	95.87% <100.00%> (ø)
...nterfaces/ecephys/basesortingextractorinterface.py	79.79% <100.00%> (ø)
src/neuroconv/tools/spikeinterface/__init__.py	100.00% <ø> (ø)
...c/neuroconv/tools/spikeinterface/spikeinterface.py	91.68% <67.21%> (-3.43%)	⬇️