Fix neutral item

Item Changes:
Dagon：
Removed
Coi's Breastplate：
[First Aid] Now provides physical barrier. It will be calculated after physical armor reductions
Incomplete Breastplate：
[First Aid] Now provides physical barrier. It will be calculated after physical armor reductions
Wolf Cape：
[First Aid] Now provides physical barrier. It will be calculated after physical armor reductions

Changes of Heroes and Abilities:
Medusa：
Mana Shield Spawn Level: 5
Mana Shield：
Removed from the ability pool
Alchemist：
Greevil's Greed Spawn Level: 1
Greevil's Greed：
Removed from the ability pool
Inner Vitality：
Removed.
Saprophytic Ward [Frosthaven]：
Removed.

Changes of Heroes and Abilities:
Drums of Slom：
In synic with Dota2. Now Drums of Slom is granted by Primal Roar and affected by Torture Pipe.
Reflection：
In synic with Dota2. Now Reflection can slow down the attack speed.
EMP：
In synic with Dota2. Now it can be upgraded by Aghanim's Shard.
Chaos Meteor：
In synic with Dota2. No longer be upgraded by Aghanim's Shard.
Ice Wall：
Removed.
Ghost Walk：
Removed.
Cold Snap：
Removed.

Changes of Heroes and Abilities:
Blood Mist：
Now granted by Thirst
Poison Nova：
Now granted byVenomous Gale
Back Track：
Removed
Fix：
Fix the crash caused by Aeon Disk
Fix the issue about Track
Fix the issue about Nature's Call
Fix the issue about Reincarnation
Fix the issue that Noxious Plague is attected by Sky staff
Fix the issue that Arc Lightning didn't deal damage properly

Fix

Item Changes：
The new Neutral Items are in synic with Dota2, and Horizons now is Tier 4.
Changes of Heroes and Abilities:
Counter helix：
In synic with Dota2
Lightning Hands（Aghanim's Scepter Ability）：
In synic with Dota2 and granted by Arc Lightning
Fix：
Currently, players from other teams are unable to pick up your Neutral Items in Dota 2 (this is a temporary adjustment, and we will make further optimizations regarding Neutral Items in Dota 2 in the future).

We have already completed some part of work to respond to the updates of Dota2.
We will continue to finish the following content synchronization.

Fix

Fix:
Fix the issue that Heroes can be killed in Fountain-area.

Fix：
Fix issues about Illusion.
Fix the issue about Good Juju.