Make SocialConfigurationUtil accessible for plugins

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.0 CE M6
• Fix Version/s: 6.2.0 CE M6
• Component/s: Social Activity, ~ [Archived] Social Networking
• Labels: None
• Epic/Theme:
  • Quick_Win
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/11316

There are a number of utility methods located in SocialConfigurationUtil that are only accessible from the portal. These methods are valuable for plugins and therefore should be accessible from there.