[BACKEND]리소스 파일과 저장폴더

※ 리소스 파일과 저장 폴더
응용 프로그램을 제작할 때 사용하는 다양한 리소스 파일이 저장되는 위치
  리소스                                     |         폴더        |       저장 파일
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그림 파일                       |   /res/drawable  | *.png, *.jpg, *.xml
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메뉴 파일                                   |   /res/menu      | *.xml
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기타 XML 파일                            |   /res/xml         | *.xml
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raw 파일(음악, 동영상, 텍스트 파일) |  /res/raw         | *.mp3, *.mp4, *.txt
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레이아웃 파일                             |  /res/layout      | *.xml
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문자열(String)                             |  /res/values      | string.xml
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문자 배열(String Array)                 |  /res/values      | arrays.xml
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  색상값                                    |  /res/values       | colors.xml
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  스타일                                    |  /res/values       | styles.xml
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   테마                                      |  /res/values       | themes.xml
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