--------------------
Feat
~~~~
- (dsp): Add `add_function` decorator to add a function to a dsp.
- (dispatcher) :gh:`4`: Use `kk_dict` function to parse inputs and
outputs of `add_dispatcher` method.
- (dsp) :gh:`4`: Add `kk_dict` function.
Fix
~~~
- (doc): Replace type function with callable.
- (drw): Folder name without ext.
- (test): Avoid Documentation of DspPlot.
- (doc): fix docstrings types.