Changed the API of BioAlgorithm and score post processors

Removed the old Algorithm class and its legacy support

Renamed allow_scoring_with_all_biometric_references to score_all_vs_all

Changed the API of score post_processors, closes #179 (closed) and !291 (closed)

Update the docs accordingly

changed milestone to %The Great Deprecation

assigned to @amohammadi

changed the description

added 7 commits

• 0196361e...88082a2e - 6 commits from branch master
• 4afa8204 - Merge remote-tracking branch 'origin/master' into pipeline-api

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added 1 commit

• 16750ec8 - fix tests

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requested review from @lcolbois

enabled an automatic merge when the pipeline for 16750ec8 succeeds

canceled the automatic merge

mentioned in commit bob.bio.vein@740b92c0

enabled an automatic merge when the pipeline for 16750ec8 succeeds

canceled the automatic merge

merged

mentioned in commit e76f1fc1

mentioned in merge request !291 (closed)

mentioned in commit bob.bio.face@ed7569b5

mentioned in merge request bob.bio.face!188 (merged)

mentioned in commit bob.bio.face@ed43668e

mentioned in commit bob.bio.vein@000f5521

mentioned in merge request bob.bio.vein!63 (merged)

mentioned in commit bob.bio.vein@5688defe