Adjust filtering of props of new logic

[yamasite]

NG SDK props: <li props="rtc"></li><li props="rtc-ng"></li>

• A flag needs to be set to extract the right comment. Maybe we can set the content to null.

Native props: <dl outputclass="since" props="native">. Currently only native is available.

This is just a placeholder. Only native is available at the moment.