feat: Add methods CCSA+LDM+fMMD+NNW+SA+FineTuning

[antoinedemathelin]

Add 6 new methods + update documentation
Change the behavior of the score method

[codecov-commenter]

Codecov Report

Merging #26 (f7674d9) into master (85b9498) will decrease coverage by 0.66%.
The diff coverage is 89.65%.

@@            Coverage Diff             @@
##           master      #26      +/-   ##
==========================================
- Coverage   94.37%   93.71%   -0.67%     
==========================================
  Files          21       27       +6     
  Lines        2188     2594     +406     
==========================================
+ Hits         2065     2431     +366     
- Misses        123      163      +40     

Impacted Files	Coverage Δ
adapt/feature_based/_coral.py	97.95% <ø> (ø)
adapt/feature_based/_dann.py	100.00% <ø> (ø)
adapt/feature_based/_deepcoral.py	95.16% <ø> (ø)
adapt/feature_based/_mdd.py	94.93% <ø> (ø)
adapt/feature_based/_wdgrl.py	100.00% <ø> (ø)
adapt/instance_based/_kmm.py	97.26% <ø> (ø)
adapt/feature_based/_fmmd.py	64.28% <64.28%> (ø)
adapt/metrics.py	89.76% <88.88%> (-0.34%)	⬇️
adapt/instance_based/_nnw.py	89.28% <89.28%> (ø)
adapt/instance_based/_ldm.py	94.11% <94.11%> (ø)
... and 20 more

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