This PR try to solve the problem that some api don't follow google cpp style.

background
cpp code should follow our style guide: https://github.com/4paradigm/rfcs/blob/main/style-guide/code-convention.md

The thing this PR has done:

Change the api of EngineOptions and JitOptions' methods to follow google cpp style name, just leave the corresponding part in openmldb-batch unchanged
The related issues
gitee