Make our fetch-gradle-dependencies script smarter regarding dependency location
We fetch gradle dependencies with our
fetch-gradle-dependencies script but don't really care where exactly we put them in that process. We should change that, though, because otherwise we need to do in build scripts things like
cp -r $gradle_repo/m2/* $gradle_repo to adjust the paths so that gradle can find them.
That's a thing our script should do in the first place to avoid complexity in our build scripts.