Gandhari texts to add

Waiting for Gandhari.org to launch their new software:
http://gandhari.org/blog/?p=251

[sujato]

Based on a recent comment, it seems the rejigging of the site will not affect us, so we can go ahead with this whenever we want:

https://discourse.suttacentral.net/t/the-read-research-environment-for-indic-texts/5784/6