--techs, --exclude-techs 동작 개선

[ksg97031]

@hahwul
이것도 시간 괜찮으실 때 리뷰 부탁드립니다~

1. --techs, --exclude-techs 쉼표 입력 시에도 정상처리
   Fixes: --techs, --exclude-techs options don't seem to handle commas as expected. #502
2. --techs 에러메시지 추가

crystal run src/noir.cr -- -b ../malll/ --techs asdf  # 등록되지 않은 tech 입력 시

░█▄─░█ ░█▀▀▀█ ▀█▀ ░█▀▀█
░█░█░█ ░█──░█ ░█─ ░█▄▄▀
░█──▀█ ░█▄▄▄█ ▄█▄ ░█─░█ {v0.18.3}

⚑ Detecting technologies to base directory.
✔ Setting 1 techs from command line.
✖︎ asdf is not recognized in the predefined tech list.      <<<< 에러메시지 출력
▲ No technologies detected.
  ➔ If you know the technology, use the -t flag to specify it.
  ➔ Please check tech lists using the --list-techs flag.

3. exclude-techs 개선 (skip 표시 + analyzer.cr 보다 앞단인 noir.cr에서 처리)

$ crystal run src/noir.cr -- -b ../github_repos/Destiny-Api/ --exclude-techs java_spring  # exclude 설정 시

░█▄─░█ ░█▀▀▀█ ▀█▀ ░█▀▀█
░█░█░█ ░█──░█ ░█─ ░█▄▄▀
░█──▀█ ░█▄▄▄█ ▄█▄ ░█─░█ {v0.18.3}

⚑ Detecting technologies to base directory.
✔ Detected 2 technologies.
  ├── kotlin_spring
  └── java_spring (skip)       <<< skip한다는 내용 출력
⚑ Start code analysis based on the detected technology.
⚑ Initializing analyzers
⚑ Analysis Started
  ➔ Code Analyzer: 1 in use       <<< analyzer에서 스킵 안된 대상만 동작
⚑ Found 23 endpoints
⚑ Optimizing endpoints.
  ➔ Removing duplicated endpoints and params.
  ➔ Adding path parameters by URL.
✔ Finally identified 21 endpoints.
⚑ Scan completed in 0.5437 s.
⚑ Generating Report.
★ Endpoint Results:

[hahwul]

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