pc: add entity metadata

[extremeheat]

Adds entity metadata keys to entities.json for pc, updates protocol.json to use string mapping for metadata item values

Addresses #72 a bit

[socket-security]

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Pull request alert summary

Issue	Status
Install scripts	✅ 0 issues
Native code	✅ 0 issues
Bin script shell injection	✅ 0 issues
Unresolved require	✅ 0 issues
Invalid package.json	✅ 0 issues
HTTP dependency	✅ 0 issues
Git dependency	✅ 0 issues
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Protestware/Troll package	✅ 0 issues

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📊 Modified Dependency Overview:

➕ Added Package	Capability Access	+/- Transitive Count	Publisher
[email protected]	None	+18	isaacs

⬆️ Updated Package	Version Diff	Added Capability Access	+/- Transitive Count	Publisher
[email protected]	5.2.0...10.2.0	shell	+44/-10	juergba

[rom1504]

I'd rather we have a dedicated package for extraction. tools/js should not contain large amount of code as it's not documented and generally not maintained.

where would that kind of extraction fit? what's the source of data ?

[extremeheat]

Yeah, I didn't know where else to put it so I left it in here for now.

It basically clones a copy of the mc source code and then does some string manipulation to extract the relevant information from the human readable source code files. Then updates the files in mc-data.

http://github.com/prismarinejs/mcdataextracting requires a fabric mode and Java code injection
http://github.com/prismarinejs/minecraft-jar-extractor is a better fit, but would need some refactoring to use mojang mappings and the ForgeFlower decompiler

[rom1504]

yeah I was not saying reimplement it another way, just move it elsewhere

maybe it could just be put in minecraft-jar-extractor with no change

[rom1504]

but let's not block on that, can be done in another pr