scrooge: Add Typesafe Ivy Resolver
scrooge: Add Typesafe Ivy Resolver

Problem

After updating to sbt 1.3.10 it appears we are running into
https://github.com/sbt/sbt/issues/4698 for building the scrooge-sbt-plugin
for sbt 0.13.18.

Solutio

Even though the issue appears to have had a fix commited, manually
add the Typesafe Ivy Resolver to the `scroogeSbtPlugin` project
settings.

Result

Hopefully the scrooge sbt plugin can now build for sbt 0.13.18.

Differential Revision: https://phabricator.twitter.biz/D478077

twitter/scrooge,twitter/scrooge,twitter/scrooge,twitter/scrooge