Alternative combination for i-hook

I found a variant of ỉ on the _Dictionarium Annamiticum Lusitanum et Latinum_ (i.e. “Dictionary of Vietnamese, Portuguese and Latin”) that retains the tittle, in this case the hook is placed at the right of character frame, and the altitude of hook is sightly lower. To implement this variant, you can just modify the mark attachment for 0069 0307 0309.

See: https://commons.wikimedia.org/wiki/File:Alexandre_de_Rhodes_-_Dictionarium_Annamiticum_(1651)_-_c.34_-_cropped_on_b%C3%AD_and_b%E1%BB%89.png