Fix #842 - exact description comment tracing.

[samchon]

When object alias type comes, typia had failed to catch its description comment and comment tags. This PR fixes such long time bug.

As the description comment is not important feature in typia, nobody had identified it until @jakubpavlicko22 says.

// POSSIBLE TO CATCH
/**
 * Some description.
 *
 * @title something
 */
interface Interface {
    value: number;
}

// WAS NOT POSSIBLE
/**
 * Some description.
 *
 * @title something
 */
interface Type {
    value: number;
}