[Enhancement] automatically create soft link for command compile.json for clangd user

[ByteYue]

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Description

Formerly, developers should manually set the --compile-commands-dir argument for clangd. According to clangd's official documentation, we can make one soft link to the 'compile_commands.json' so that clangd would automatically detect it and then do all the semantic analytical workloads.

Solution

1. add one new ignore item for compile_commands.json in the root path
2. add logic in the build.sh which can detect the build dir and make soft link for the compile_commands.json

Are you willing to submit PR?

• [ ] Yes I am willing to submit a PR!

Code of Conduct

• [X] I agree to follow this project's Code of Conduct

[LHG41278]

I want to take this issue. thanks very much.