feat: implement Docker Model Runner argument options parsing

[IamGroooooot]

Purpose

Docker Model Runner 관한 command line option을 파싱할 수 있게 구현하고 관련 테스트를 추가했습니다.

Closes: #277
Supersedes: #471

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce?

[x] New feature  
[ ] Bugfix  
[ ] Refactoring (no functional changes, no api changes)  
[ ] Documentation content changes  
[ ] Other... Please describe:

README updated?

The top-level readme for this repo contains a link to each sample in the repo. If you're adding a new sample did you update the readme?

[ ] Yes
[ ] No
[x] N/A

How to Test

• Get the code

• Test the code

   # ArgumentOptionsTests에서 DMR 관련 데이터행(InlineData)만 실행
   $ dotnet test test/OpenChat.PlaygroundApp.Tests/OpenChat.PlaygroundApp.Tests.csproj --filter "FullyQualifiedName~OpenChat.PlaygroundApp.Tests.Options.DockerModelRunnerArgumentOptionsTests"
   
   # 인자값에 “DockerModelRunner”가 들어간 케이스만 테스트
   $ dotnet test test/OpenChat.PlaygroundApp.Tests/OpenChat.PlaygroundApp.Tests.csproj --filter "FullyQualifiedName~OpenChat.PlaygroundApp.Tests.Abstractions.ArgumentOptionsTests&DisplayName~DockerModelRunner"

  The test should pass.
  

What to Check

• Docker Model Runner의 인자를 파싱할 때 config-only, CLI-only, 혼합 입력 모두 정상 동작하는지 확인
• --help 옵션에 Docker Model Runner 관련 인자가 출력되는지 확인

[justinyoo]

LGTM! 좋습니다!