Tags review: which tags are in which contrasts?

[ferponcem]

This PR is a continuation of the efforts started in #73, just that now we're looking at every tag and listing the contrasts annotated with it. From there, we can suggest to maintain/remove/annotate more contrasts with it.

This initial commit summarizes the discussions of 04/Dec and 11/Dec/2024, with more to come.
Staring with the tags:

• naturalistic_scenes : added it to flora and fruits visual stimuli, without the capital letters
• removed attentional_focusing in favour of selective_attention. to me, this two refer to the same thing, but selective_attention appears more consistently through our contrasts
• removed auditory_imagery as we don't have any task that ask subjects to imagine sounds, please correct me if I'm wrong
• auditory_attention is left only in control conditions, otherwise it's redundant
• auditory_recognition is now in all audio-stimuli when there are several categories
• body_maintenance was added to the visual body stimuli from the MultiModal task, along with face_maintenance and object_maintenance, as this is a 1-back working mem task
• added color_perception to other tasks where color places a role (say which color happend more, etc)
• added decision_making to tasks where subjects have to choose between 2 or more explicit options

I'll keep updating with the following discussions, please let me know what you think (:

[bthirion]

LGTM so far