Merge branch 'master' of https://gricad-gitlab.univ-grenoble-alpes.fr/dinarelm/tarc-multi-task-system

Code modified to support MADAR data translation into Arabish (with madar-trs, madar-trs-ex, madar-trs-full subtasks)

Merge branch 'master' of https://gricad-gitlab.univ-grenoble-alpes.fr/dinarelm/tarc-multi-task-system

Added OO prediction management at test phase when using both token and character level information (due most probably to the fact that the model has not been learned properly). TODO: code clean-up

Added OO prediction management at test phase when using both token and character level information (due most probably to the fact that the model has not been learned properly). TODO: code clean-up

Corrected a mistake in the double-signal learning op flow. Using 2 different additional_fc for tokens and chars in the decoders. TODO: test this solution now

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Modifications qui seront validées :
	modifié :         TarcLSTMModules.py
	modifié :         TarcMultiTaskModels.py
	modifié :         tarc_multitask_sequence_generator.py

Added the possibility to train the model based on both token and character sequences (that is two losses for each task). Inference phase has not been tested yet.

Added the possibility to train the model based on both token and character sequences (that is two losses for each task). Inference phase has not been tested yet.

Few more modification for integrating the use of tokens and chars together, managed through the use of granularity_merging_flags, instead of detecting if the merging needed to be performed at running time