servicecomb提供的异常拦截器ExceptionToProducerResponseConverter不能拦截 Handler，HttpServerFilter 等抛出的异常

#### 背景
当业务定制的filter或者servicecomb自带的filter出现异常时，想要根据对应的异常类型或异常信息来记录日志或告警

#### 分析
查看servicecomb源码，发现ExceptionToProducerResponseConverter只能在业务执行业务逻辑阶段抛出异常才会捕获， Handler，HttpServerFilter 等抛出的异常当前没有通用的拦截机制

#### 诉求

能够针对Handler，HttpServerFilter 等抛出的异常也提供类似异常捕获器的能力

Start by reading ExceptionToProducerResponseConverter and tracing the exception paths from Handler and HttpServerFilter. Determine where a common interception mechanism could observe those exceptions, then define and verify the expected behavior for logging or alerting based on exception type or message.

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