Add italic glyphs

AE, ordfeminine, Lslash, Oslash, OE, ordmasculine,
ae, dotlessi, lslash, oslash, oe, germandbls,
softhyphen, copyright, logicalnot, registered,
degree, plusminus, two.superior, three.superior,
micro, one.superior, onequarter, onehalf, threequarters