Release AnnotationPlugin 0.5.0, LocalizationPlugin 0.8.0

[LukasPaczos]

mapbox-android-plugin-annotation-v7:0.5.0

• Do not flag click events as handled #822
• Update dependencies and javadoc source reference #827
• Fixup remove drag listener naming #833
• Maps SDK v7.1.1 #820

mapbox-android-plugin-localization-v7:0.8.0

• Language fallbacks for Localization plugin #823
• Update dependencies and javadoc source reference #827
• Increase usefulness of warning log for Localization sources #825
• Maps SDK v7.1.1 #820

Release checklist

• Cut the release branch
• Run through testapp/demo app and test all activities
• Update CHANGELOG.md
• Change version names in gradle.properties
• Update release branch in circle.yml
• Publish artifacts to Maven Central
• Change release branch back to master in circle.yml
• Change version name back to SNAPSHOT
• Merge the release branch back to master
• Tag releases in GitHub

Post-release @langsmith

• Update README.md
• Update constants.js file in android-docs repo
• Generate updated javadocs and add to android-docs repo

/cc: @mapbox/android