matcher: add implementation for ServerNameMatcher

[agrawroh]

Description

This PR adds a trie-based implementation for ServerNameMatcher [Link].

Example Config:

matcher_tree:
  input:
    name: input
    typed_config:
      "@type": type.googleapis.com/google.protobuf.StringValue
  custom_match:
    name: domain_matcher
    typed_config:
      "@type": type.googleapis.com/xds.type.matcher.v3.ServerNameMatcher
      domain_matchers:
      - domains:
        - "api.example.com"
        on_match:
          action:
            name: test_action
            typed_config:
              "@type": type.googleapis.com/google.protobuf.StringValue
              value: exact_match
      - domains:
        - "*.example.com"
        on_match:
          action:
            name: test_action
            typed_config:
              "@type": type.googleapis.com/google.protobuf.StringValue
              value: wildcard_match
      - domains:
        - "*.com"
        on_match:
          action:
            name: test_action
            typed_config:
              "@type": type.googleapis.com/google.protobuf.StringValue
              value: global_wildcard

---

Commit Message: matcher: add implementation for ServerNameMatcher
Additional Description: This PR adds a trie-based implementation for ServerNameMatcher for both Network & HTTP.
Risk Level: Low
Testing: Unit Tests
Docs Changes: Added
Release Notes: Added

[repokitteh-read-only]

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🐱

Caused by: #37271 was opened by agrawroh.

see: more, trace.

[agrawroh]

/assign @kyessenov