Evas textblock: Fix BiDi text cut-off at the edges.

Evas textblock: Fix BiDi text cut-off at the edges.

This patch fixes an issue causing text to be cut off in some cases.
The problem was that we were calculating line width and alignment before
we did any bidi calculations, which in turn caused us to use the wrong
text items for those calculations.

Many thanks to Daniel Hirt for investigating this deeply, finding all
the nitty-gritty and generally pointing me to where the problem is.
Daniel also provided the test case.
His patch (D1291) was close, but not enough.

Fixes T1496

@Fix