Catch incorrect bloginfo() usage

## What problem would the enhancement address for VIP?
When using `bloginfo()`, the caller should not echo the output, as `bloginfo()` does this internally (see [here](https://developer.wordpress.org/reference/functions/bloginfo/#source)). Callers should simply call `bloginfo()` without any `echo`, but if the callers want to control when the output is echoed, they should use `get_bloginfo()` ([#](https://developer.wordpress.org/reference/functions/get_bloginfo/)). Our standards should catch these kinds of issues in code.

## Describe the solution you'd like
The usage of `echo bloginfo()` should be caught and advice given on using `get_bloginfo()` instead or to skip the echo.

## What code should be reported as a violation?
echo bloginfo( 'name' );

## What code should *not* be reported as a violation?
echo get_bloginfo( 'name' );

从检查函数使用情况的 PHP_CodeSniffer 规则开始，以 bloginfo() 和 get_bloginfo() 作为入口点。确认 echo bloginfo( 'name' ) 会被报告，并建议省略 echo 或使用 get_bloginfo()，而 echo get_bloginfo( 'name' ) 不会被报告；如果相关规则测试可用，请运行它们。

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