ItemTable tag support [$55]

[mastercoms]

This issue is part of the 1.13.x compatibility Epic.

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Description:

Our registry of item and block IDs and their mappings to classes should be serialized from a tag system. This will require parsing tags from vanilla data packs.

Reference Documentation:

https://wiki.vg/Data_Generators#Tag_providers
https://minecraft.gamepedia.com/Tag
https://papermc.io/javadocs/paper/1.13/org/bukkit/Tag.html

Relevant Code:

https://github.com/GlowstoneMC/Glowstone/blob/1.13/src/main/java/net/glowstone/constants/ItemIds.java
https://github.com/GlowstoneMC/Glowstone/blob/1.13/src/main/java/net/glowstone/block/ItemTable.java
https://github.com/GlowstoneMC/unflattening

Related to:

#4
#2

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