Corrections for Greek

Hallo,

I have folowing suggestions for the Greek letters.

1) Kerning pairs for combinations Greek accent + capital Greek letter

I suggest adding kerning pairs for combinations Greek accent +
capital Greek letter. Now, accent + letter looks not very good--the
accent is too far from the letter. I generated the kerning pairs
from the sfd files with the goal that the accent should have
exactly the same position to the letter as it has in the precomposed
letter.

I'm sending the kerning pairs in two formats: *.txt and *.afm. The
*.txt file is plain text file with 3 columns: accent, letter and
kerning. It has the values that should go to the sfd file.
The *.afm file uses the format of the PostScript fonts and the
kerning values are scaled down by factor 1000/2048. Importing the
kerning pairs from the *.afm files is easy, but there are some
rounding errors (nevetheless acceptable). I learned the sfd format
just as much to generate these kerns and it would take me quite some
time to change directly the sfd files.

This is a safe feature to implement, it doesn't break anything.

It would be useful for the typesetting system TeX and I think that
it would be best to implement it in the fonts (more people
could benefit from it).

There are currently just few fonts that implement kerning between