Repositories migrations

[Mjollna]

Hello everyone!

Since Bitbucket will soon stop to support mercurial/hg repositories, and since all my tools were using mercurial, I've migrated them to git and switched the hosting to Github.

The repos are all there: https://github.com/mjollna-wow
This concerns : gltf2m2, adtconverter, gillijimproject and wowmapgen.