Support lint `"tags"` field in BCD

[skyclouds2001]

What type of issue is this?

Linter issue

What is the issue?

Current the tags is mantually added by hand according to https://github.com/web-platform-dx/web-features/, but no lint will run for this field. This may cause some mistakes like: incorrect tag in #24913, or tag added to mismatched feature, or tag not added to matched feature.

What behavior were you expecting?

Support lint tags field in BCD. May need to check: whether the tag name s correct, whether the tag is added to the matched feature, whether the tag is not added to a matched feature, etc.

What version(s) of BCD is the issue present in?

• The current BCD release
• The current version of the main branch

Do you have anything more you want to share?

No response

[queengooborg]

Those tags are actually added via a script, not manually added. The script in question already handles renames, deleted web features, etc.

More importantly, I don't think that BCD should be adding linting for web features tags. BCD doesn't control web features; it's a separate project.