支持Thrift Compact Protocol

**Is your feature request related to a problem? (你需要的功能是否与某个问题有关?)**
在某个实际业务场景下，压测显示ThriftCompactProtocol与ThriftBinaryProtocol相比可节省50%的带宽使用与10%的cpu使用。

**Describe the solution you'd like (描述你期望的解决方法)**
在brpc框架中添加Thrift Compact Protocol支持。

**Describe alternatives you've considered (描述你想到的折衷方案)**

**Additional context/screenshots (更多上下文/截图)**

The issue names brpc and the existing ThriftBinaryProtocol and requests Thrift Compact Protocol support, but it does not identify files or tests. Start by locating brpc's current Thrift protocol integration and its protocol-related tests. Done means Compact Protocol is supported in brpc and the reported bandwidth and CPU benefits can be validated.

Written by the indexing model from the issue text.