Remove the word 'places' from GroupService API

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: None
• Fix Version/s: 6.2.0 CE B1
• Component/s: Portal Services, Portal Services > Legacy
• Labels: None
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/12867

In GroupServiceImpl there are several methods that include the word 'places' in the method name:

getUserPlaces*

Most of them have been deprecated and has been replaced by

getUserPlacesGroups*

However, it makes more sense to use the word "Sites" instead of "Places". As those new methods are new in this version, we can safely change them and update the deprecated methods to link them to the new methods.