Unification and partitioning of error codes

[chuntaojun]

Issue Description

Type: feature request

Describe what happened (or what feature you want)

background

1. The current error information needs to be standardized to better troubleshoot the problem
   Ideas
2. Need to divide NacosException error codes in more detail
3. Divide different error code segments for different modules, and correspond to the corresponding error information

Describe what you expected to happen

How to reproduce it (as minimally and precisely as possible)

Tell us your environment

Anything else we need to know?

[jintonghuoya]

@i will solve it@