Explicit concordance corpus order sort parameter

The current corpus order is implicit, making in explicit is better when using complex sort configurations.

Solution

• replace the “None” key with the “Corpus order/Ordre du corpus” key
• add a virtual CQP property “position” in the word property lists

(from redmine: issue id 2919, created on 2020/10/13 by Matthieu Decorde)

added type::task ui + 1 deleted label

changed milestone to %TXM 0.8.2

renaming “None” sort key, done.

(from redmine: written on 2020/10/13 by Matthieu Decorde)

closed

assigned to @mdecorde