Feature: Add `id` to Glob to allow GlobSet identifying/reporting which one matched

[reneleonhardt]

Describe your feature request

GlobSet is very useful, but at the moment it can't report which specific Glob matched, it only reports true/false after iterating patterns.

Current function:

pub fn is_match_candidate(&self, path: &Candidate<'_>) -> bool {

New function:

pub fn get_match_id(&self, path: &Candidate<'_>) -> Option<String> {

pub struct Glob {
    id: String, // Identifier
    glob: String,
    re: String,
    opts: GlobOptions,
    tokens: Tokens,
}

This would allow to process even hundreds of Globs (maybe even in parallel with futures-concurrency) while still being able to identify which exact pattern matched and process a corresponding mapping accordingly (i.e. ".gitignore discarded Cargo.lock").