Extension dependencies

[Novampr]

Adds a dependency system to Geyser extensions, might be a little rough since I haven't touched graphs much, but it works.

Example extension.yml:

id: exampleextension
name: Example Extension
main: org.geysermc.extension.example.ExampleExtension
api: 2.8.3
version: 1.0.0
authors: [Me]
dependencies:
  myotherextension:
    # Defaults to true
    required: false
    # Defaults to BEFORE
    load: AFTER

That example would ensure myotherextension is loaded BEFORE exampleextension (The wording does say AFTER in the extension, this simply defines how the current extension will load, so in this case, AFTER myotherextension, this behaviour matches the paper-plugin.yml spec)

[onebeastchris]

Can you show an example extension.yml how those would be specified? That should be documented on the wiki; and would ideally require an extension to specify an API version

[Novampr]

Provided an example extension yaml file in the description of the PR, would we want to just show a warning for extensions that depend on different API versions? Since they could still work regardless (See ThirdPartyCosmetics, uses API version 2.4.1 but works with modern Geyser)

[dima-dencep]

I would also like to suggest the option to add a link for downloading any of the dependencies, since extensions for Geyser are quite hard to find
Like:

dependencies:
  myotherextension:
    download-url: https://github.com/PlayerAnimationLibrary/GeyserPAL/releases # here
    load: AFTER

[Novampr]

I'm not sure this is something we'd wanna implement, seems like a bit of a niche.

[onebeastchris]

Adding links to the dependency is IMO not a good idea, the extension author should link the dependency instead

[eclipseisoffline]

We might want translation strings for the new log messages.

[Novampr]

I've added some translation strings to this, #143 would need to be merged first

[onebeastchris]

@Novampr merged in languages; just needs bumping & documentation on https://geysermc.org/wiki/geyser/extensions#creating-geyser-extensions
Just to make sure - did you test whether "old" extensions that don't have any dependencies load fine?

[Novampr]

Old extensions load just fine, the dependency block is entirely optional and extensions still work without it

[Novampr]

#98 is ready for merge!