Release LocalizationPlugin 0.5.0

[LukasPaczos]

Changelog

• Update ProGuard to support built-in shrinker of Gradle Plugin #582
• Update localization plugin to support expressions #654
• Fix Localization set camera to locale country Javadoc broken link #640
• Adding japanese and korean support to localization plugin #575
• Maps SDK bump to 6.5.0 #634

Release checklist

• Cut the release branch
• Run through testapp/demo app and test all activities
• Update README.md
• Update CHANGELOG.md
• Change version name to 0.5.0 in gradle.properties
• Publish artifact to Maven Central
• Change version name back to 0.6.0-SNAPSHOT
• Merge the release branch back to master
• Tag v0.5.0-localization in GitHub

Post-release @langsmith

• Update constants.js file in android-docs repo
• Generate updated javadocs and add to android-docs repo
• Update the version # in the Mapbox demo app

/cc: @mapbox/android

[langsmith]

🏁🍾