Adding version headers for mobile Sync

• Type: New Feature
• Status: In Progress
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: None
• Fix Version/s: None
• Component/s: iOS, Liferay Sync
• Labels: None

1. Add key "Sync-Device" and "mobile-android" value;
2. Add "Sync-Build" for mobile, it may be useful in the future;