Networking cleanup & some feature re-enable

[jjtParadox]

Alright this one's a big one. I found that a lot of packet sending and handling code hadn't been ported from 1.7.10, leaving a lot of functionality simply not working. I swept things up by commenting out stuff that wasn't being handled or used and uncommented stuff that could be handled. Here's the list of affected features:

• Features that were commented out but are now working
  • Player velocity effects
  • Calefactor data sync
  • Magician's workbench data sync
  • Keystone combination sync and saving
  • Phylactery list creation
• Server-to-client packets and features that are currently not being handled by client
  • Compendium Unlock
  • Hidden Component Unlock
  • Radius Spell Effect
  • Capability Change
  • Sync Extended Properties
  • One-time Affinity Activate
• Unknown and non-operational features
  • compendiumLoad boolean in ClientTickHandler had no purpose, so it was removed.

I also removed (commented out) packet IDs that were either never used or not handled. Here's the list of unused packets:

• SPELL_CAST
• MAGIC_LEVEL_UP
• PLAYER_REMOVE_ALL_BUFFS
• ADD_BUFF_EFFECT
• REMOVE_BUFF_EFFECT
• CHAIN_LIGHTNING_CAST
• SYNC_EXTENDED_PROPS
• SYNC_SPELL_KNOWLEDGE
• POSSIBLE_CLIENT_EXPROP_DESYNC
• SYNC_AIR_CHANGE
• SYNC_AFFINITY_DATA
• NBT_DUMP
• SPELL_APPLY_EFFECT
• COMPENDIUM_UNLOCK
• HIDDEN_COMPONENT_UNLOCK
• CABABILITY_CHANGE
• AFFINITY_ACTIVATE

Multiple of the above packets were temporarily deprecated in favor of the SYNC_CLIENT packet or networking methods provided by Forge (i.e. I found that the RUNE_BAG_GUI_OPEN packet had been superseded by Forge's FMLNetworkHandler). However, some of the above likely represent non-existent features that are missing in the current 1.10.2 version. These should be looked into and updated if possible.

Additionally, PR #364 removes the SYNC_CLIENT packet and replaces it with some of the above packets. If that PR is merged in, this PR will need to update to resolve the merge conflict.

I temporarily disabled beta tester aura sync, as the AM2 extended properties do not have data storage for the aura. That'll be in a future PR.

(Also, an "Is player flipped" packet is being sent to every player on every game player tick. Is that optimal?)

[EdwinMindcraft]

Neither the flip nor the shrink feature should be enabled ideally : They're both unstable and not exactly working.