Add a filter to avoid wrapping in some posts/pages

I want to disable content-bootstrap function is some pages like contact form pages.

Usage of this filter hook would be like below.

```
add_filter( 'content_bootstrap_wrap', 'no_content_bootstrap_wrap' );
function no_content_bootstrap_wrap( $bool ) {
	if ( is_page_template( 'form.php' ) ) {
		return false;
	}
	return true;
}
```