timestamps full support

according to the manual Studio One records BWF wave files with timestamps

I'd like to have functions to be applied to a selected audio event (one, or more, or all audio events selected):

"move selected events to original time stamp"

"assign user time stamp to selected events" (based on the current position in the time line)

and

"move selected events to user time stamp"

and of course the rendered, bounced and exported files should retain the original and user timestamps