Partial enabling of transition types for different label scorers

[SimBe195]

This adds a parameter ignored-transition-types to the LabelScorer base class which allows users to specify a list of transition types which will always get assigned score 0 and not affect the ScoringContext. This can be especially helpful when building combined label scorers with multiple sub-scorers of different label topology such as for example CTC + LSTM LM where the LM needs to ignore all blank transitions as well as label loops and CTC on the other hand needs to ignore the sentence-end.

Do achieve this, extendedScoringContext, computeScoreWithTime and computeScoresWithTimes are implemented in the base LabelScorer and call protected functions {extendedScoringContext|computeScoreWithTime|computeScoresWithTimes}Internal which are overridden in child classes.

Depends on modifications to the transition type handling from #138.

Edit:
This logic was changed so that instead of a blacklist, the LabelScorer has a parameter transition-preset which enables a preconfigured list of used transition types for specific models and any additional ones can be enabled via another parameter extra-transition-types. The available presets for now are "default", "none", "ctc", "transducer" and "lm". When the default preset is used, it takes a preset that is specified by each LabelScorer subclass individually and should be the most common use-case for that class. For example for CombineLabelScorer the default will use preset "all", for NoContextOnnxLabelScorer the default will use preset "ctc" and so on.