Create a small Groovy script that can be used in `settings.gradle`
files to extend `repositories` to support the various maven
repositories required for our build.
See gh-42333
Replace Gradle single quote strings with the double quote form
whenever possible. The change helps to being consistency to the
dependencies section where mostly single quotes were used, but
occasionally double quotes were required due to `${}` references.
Andy Wilkinson
Phillip Webb
Andy Wilkinson
Andy Wilkinson
Phillip Webb
Vedran Pavic