Many classes in parquet-hadoop belong in parquet-column

There are a handful of classes, like BlockMetaData and some of the other \*MetaData classes that are currentlyin parquet hadoop but aren't hadoop specific. Which force some other classes (like the row group filter) to also live in parquet-hadoop when they really belong in parquet-column

**Reporter**: [Alex Levenson](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=alexlevenson) / @isnotinvain

_{**Note**: *This issue was originally created as [PARQUET-38](https://issues.apache.org/jira/browse/PARQUET-38). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}

首先定位 parquet-hadoop 中的 BlockMetaData 和其他 *MetaData 类，然后检查行组过滤器及其模块依赖。只要与 Hadoop 无关的元数据和相关过滤类能够放入 parquet-column，且不留下必需的依赖，重构就完成了。

由索引模型根据 Issue 内容生成。