SQL Filtering supports `/`

Here we have the scenario where the message properties are named with `/`, e.g. `a/b/c`. To filter those attributes, we're eager on the enhancement of SQL filterting that is able to handle special characters such as `/`.

We've tried defining `/` in the `ID` of `org.apache.rocketmq.filter.parser.SelectorParser` but it didn't worked as expected, the error message is like
Caused by: com.alipay.sofa.sofamq.org.shade.apache.rocketmq.client.exception.MQClientException: CODE: 23 DESC: org.apache.rocketmq.filter.parser.TokenMgrError: Lexical error at line 1, column 3. Encountered: "b" (98), after : "/"