feat: support otel subcommands

[y1yang0]

related to #192

$ ./otel
Usage: otel <command> [args]
Example:
        otel go build
        otel go build main.go
        otel version
        otel set -rule=rule.json -verbose

Command:
        version    print the version
        set        set the configuration
        go         build the Go application

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 83.81%. Comparing base (0d37fdd) to head (e443473).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #216 +/- ## ======================================= Coverage 83.81% 83.81% ======================================= Files 19 19 Lines 791 791 ======================================= Hits 663 663 Misses 102 102 Partials 26 26 ```

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