[PICA] Handle multiple paginations and multi-volume works

Closes #755
It is entered on sudoc <code>3 vol.(XII-XXIII-681, 540, 739 p.) ; 8vo </code>
On sudoc a dash is only used to separate different paginations of the same volume. A comma, or sometimes a semicolon, to separate the different volumes (and, hence, their paginations).
I've found sometimes a comma to separate the paginations of one unique volume but it was not ambiguous because in any case, the nb of vols appears in the catalog (and where it's not present, it's because there is just one volume). That's why I said (above) that we should rely on the nb of vols to "understand" the pagination(s). Thank you for your work on this.