支持自定义 thrift types, thrift client, handler package name 区分命名

**Is your feature request related to a problem? Please describe.**

thrift 生成代码后，types 和 handler 的 package name 是一致的，thrift client 的 package name 也很相似

例如 thrift namespace 是 `a.b.c_service` 里面有一个 `CService`，types package name 是 `c_service`，thrift client package name 是 `cservice`、handler 的 package name 要求和 thrift namespace 一致是 `c_service`。

看代码和引用的时候都比较混乱

**Describe the solution you'd like**

package name 支持各自自定义

**Describe alternatives you've considered**

A clear and concise description of any alternative solutions or features you've considered.

**Additional context**

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