PartyPro - RPGLeveling/MMOSkillTree/SimpleClaims Integration

# PartyPro  0.8.82
**Fixes**
- MMOSkillTree: requiredSameSkill removed from config.
- Fixed a padding issue in the Party HUD.
- Fixed several WorldThread crashes.
- MMOSkillTree: The XP earner was not affected by the GroupMultiplier, causing party members to receive more XP than the earner. This has been fixed.
- MMOSkillTree level display should no longer flicker.
- The hint message is now centered again and can be disabled.
- SimpleClaims changes and fixes, hopefully it works.

**Changes**
- The ping system can now be disabled via the config.
- Player skins (heads) are now displayed in the party list and party chat correctly
- Several internal changes and improvements.
- MMOSkillTree: Added a checkbox to apply XP sharing to all skills, regardless of the selected skill. Also counts for Total Level or None
- GroupMultiplier for RPGLeveling and MMOSkillTree has been adjusted and is now configurable based on the number of players in the group.