Feat: /api/auth/member 관련 DTO 작성

Related to: KakaoTech-BootCamp-Team-2#2

src/main/java/kaboo/kaboo_auth/domain/dto/response/MemberInfoResponse.java

@@ -0,0 +1,14 @@
+package kaboo.kaboo_auth.domain.dto.response;
+
+import kaboo.kaboo_auth.domain.Course;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class MemberInfoResponse {
+	private String koreaName;
+	private String englishName;
+	private int classNum;
+	private Course course;
+}

src/main/java/kaboo/kaboo_auth/domain/dto/response/MemberIntroduceResponse.java

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+package kaboo.kaboo_auth.domain.dto.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class MemberIntroduceResponse {
+	private String introduce;
+}

src/main/java/kaboo/kaboo_auth/domain/dto/response/MemberListResponse.java

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+package kaboo.kaboo_auth.domain.dto.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class MemberListResponse {
+	private int classNum;
+	private int memberNum;
+	private MemberInfoResponse[] memberList;
+}

src/main/java/kaboo/kaboo_auth/domain/dto/response/ResponseDTO.java

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+package kaboo.kaboo_auth.domain.dto.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class ResponseDTO<T> {
+	private boolean success;
+	private String message;
+	private T data;
+}