Mediaconvert support

[jfrolich]

It looks like the new mediaconvert service will replace elastictranscoder in most of the use-cases. I am interested in using this and might contribute a package. Let me know if there is already something in the pipeline or other things I should know about.

[juantascon]

Hi, we added a mediaconvert package, if you are still interested feel free to use it: https://hex.pm/packages/ex_aws_mediaconvert