Add `sb.cdp.gui_click_and_hold(selector, timeframe)`

## Add `sb.cdp.gui_click_and_hold(selector, timeframe)`

Technically, this functionality already exists via:
`sb.cdp.gui_drag_and_drop(drag_selector, drop_selector, timeframe)`
However, not everyone realizes this.
Click-and-hold is just drag-and-drop to the same location.
Now it will be clear.