增加角色Role、权限Privilege及他们关系实体，实体Mapper等内容

liurunyu

2023-11-07 4ef44fad498ddfb2b157d6c74c515e4041ee71ea

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distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.5/apache-maven-3.9.5-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar