Allow setting `yaml.customTags` as prefixes, so any suffix like `!u!28` is accepted without errors

Is your enhancement related to a problem? Please describe.

Same problem as this, but the proposed solution is terrible:

• #755

Errors in Unity's asset files are impossible to disable without either:

• disabling validation globally, or
• adding (and always updating!) a gigantic list of custom tags

Describe the solution you would like

Please allow a way for yaml.customTags to set the tag as a prefix. For example, you can simply allow a <*> at the end so that all tags with the prefix are matched. If you want to go even further, you could even allow any JS regex within <...> for a simple but flexible implementation. For example:

"yaml.customTags": [
    "tag:unity3d.com,2011:<*> mapping", // allow any suffix, e.g. `tag:unity3d.com,2011:28`
    "<tag:unity3d[.]com,2011:\\d+> mapping", // allow any custom regex
]

Describe alternatives you have considered

I've tried setting an empty json schema https://www.schemastore.org/any.json, but it doesn't suppress the "Unresolved tag" errors.

I've tried disabling validation to stop the errors, but it seems it can only be done globally, not per file extension/glob, see:

• #998

Additional context

I don't know if I'm supposed to use some other workaround here, like referencing custom tags from an external URL somehow, or using some Unity YAML schema, but I didn't find anything of the sort.

I chose "enhancement", but I might as well call it a bug, since I get errors with no workaround, and tag suffixes are a part of YAML spec as far as I understand. You shouldn't force people to have to add every possible suffix, as the list can be giant and change with time, as in Unity's case.

If there's already a way to do this currently, then it's not properly documented.

The issue names no files or tests. Start by locating the handling of the yaml.customTags setting and unresolved-tag validation, then determine how prefix or regex entries should be represented. Done means a prefix such as tag:unity3d.com,2011:<*> accepts suffixes like 28 without errors, with coverage for the requested behavior.