Add "smartiness" for MP2RAGE support

[yarikoptic]

I think we should do "post-treatment" to provide generic support across heuristics that

• if there is mp2rage in suffix or _acq- after heuristic but we have multiple sequences named identically and coming from the same sequence name (and some UID groupping, relevant also for Add PDT2 handling #834 ), and we have series_description ending with variable suffixes:

then we could add some ad-hoc handling to fit where in BIDS for quantative anatomicals it should fall

ref : https://bids-specification.readthedocs.io/en/stable/appendices/qmri.html#unit1-images

use case of @jbpoline at BIC