parquet-avro logical type support broke ability to use avro reflection with generics.

Impacts 1.9.0 and 1.8.2.

Assuming the fieldClass is a concrete class (which it is for all of the logical types) is an incorrect assumption when generics are used.

Statistics {
T field1
T field2
}

SetStatistics extends Statistics> {}

Solution is to check if the fieldClass is abstract/interface/raw object.

**Reporter**: [Evan McClain](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=aeroevan) / @aeroevan
**Assignee**: [Evan McClain](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=aeroevan) / @aeroevan
#### Original Issue Attachments:
- [0001-Do-not-pass-knownClass-if-it-is-abstract-interface.patch](https://issues.apache.org/jira/secure/attachment/12850491/0001-Do-not-pass-knownClass-if-it-is-abstract-interface.patch)

_{**Note**: *This issue was originally created as [PARQUET-856](https://issues.apache.org/jira/browse/PARQUET-856). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}

使用 Statistics 和 SetStatistics extends Statistics> 示例重现 Avro 反射失败。检查 parquet-avro 中 fieldClass 附近的逻辑类型处理，并将其与附加的补丁进行比较；完成的标准是泛型反射能够工作，而无需将抽象类、接口或原始 Object 类作为已知类传入。

由索引模型根据 Issue 内容生成。