TrustKit-Android can’t support multi <domain> under the same <domain-config>

issueで参照されているテストリソースである trustkit/src/androidTest/res/xml/network_security_config.xml から始め、既存の複数ドメインのケースを確認します。1つの domain-config 配下に複数のドメインがある場合のカバレッジを追加し、その後、最後のドメインだけでなく google.com、yahoo.com、verizon.com に pinning が適用されることを確認します。

Is your feature request related to a problem? Please describe.
TrustKit-Android can’t support multi under the same
This means it only deploys SSL public key pinning at the last domain, for example

<domain-config>
  <domain includeSubdomains="true">google.com</domain>
  <domain includeSubdomains="true">yahoo.com</domain>
  <domain includeSubdomains="true">verizon.com</domain>
<pin-set>
    <pin digest="SHA-256">AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=</pin>
    <pin digest="SHA-256">YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg=</pin>
  </pin-set>
</domain-config>

TrustKit only verifies the domain verizon.com’s certificate chain. Neither google.com nor yahoo.com

Describe the solution you'd like
Because TrustKit Android works by extending the Android N Network Security Configuration, it is good to support multi under the same

Describe alternatives you've considered
If we want to enable SSL pinning to multi domain, even the same certificate chain, we need to separate the domain-config

<domain-config>
  <domain includeSubdomains="true">google.com</domain>
  <pin-set>
    <pin digest="SHA-256">AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=</pin>
    <pin digest="SHA-256">YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg=</pin>
  </pin-set>
</domain-config>
<domain-config>
  <domain includeSubdomains="true">yahoo.com</domain>
  <pin-set>
    <pin digest="SHA-256">AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=</pin>
    <pin digest="SHA-256">YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg=</pin>
  </pin-set>
</domain-config>
<domain-config>
  <domain includeSubdomains="true">verizon.com</domain>
  <pin-set>
    <pin digest="SHA-256">AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=</pin>
    <pin digest="SHA-256">YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg=</pin>
  </pin-set>
</domain-config>

Additional context
We can refer its test cases:
https://github.com/datatheorem/TrustKit-Android/blob/master/trustkit/src/androidTest/res/xml/network_security_config.xml