Add 35-lang-normalize.conf

This avoids a situation where the score of lang becomes lower or equal to others
and then figures out the best font according to other properties and the order
of family names.

This typically happens only when our orthography files are the subset of lang
in patterns. i.e. fc-match :lang=en-us to match on en.orth.
In this case, the score is lower than the exact match (en to en) and the partial
match (en to en-us). thus, the result of 'fc-match :lang=en-us' isn't necessarily
same to 'fc-match :lang=en'.

So 35-lang-normalize.conf contains languages only which is available as orth
without countries and tries to update properties to match on orth exactly like:

  <match>
    <test name="lang" compare="contains">
      <string>en</string>
    </test>
    <edit name="lang" mode="assign" binding="same">
      <string>en</string>
    </edit>
  </match>

Fixes fontconfig/fontconfig#155
3 jobs for lang-normalize in 14 minutes and 51 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Build
passed mingw-build #449064

00:14:50

passed shared-build #449061

00:06:24

passed static-build #449062

00:04:49