[Feature Request] rows.clear method

[dday9]

• I have looked through the documentation to try to see if this feature already exists.
• I have looked at the demos to see if one of them does what I want, but none of them did.

Is your feature request related to a problem? Please describe.
I dynamically populate my table via AJAX requests. A typical workflow is:

1. A user searches a form
2. This sends an AJAX request to fetch the filtered data
3. The table should reflect what is returned by the server without having to destroy and reinitialize it
4. Right now there's no one-liner to clear the grid before rehydrating

Describe the solution you'd like
Create a new method on the rows API that will remove every row on the grid, e.g.:

clear() {
  this.dt.data.data.length = 0;
  this.dt.update(true)
}

Describe alternatives you've considered

1. Set the grid's data.data.length to 0
2. Call the update method on the grid

Additional context
Example with workaround and use case: https://codepen.io/dday9/pen/OPyZzJK