Add jump/seek API for the Player class

[MichaelOrlov]

Description

This feature is part of the #696
According to the design jump/seek API suppose to allow jump back or forward to an arbitrary point in time during playback.
During the jump, messages lying in the interval between current timestamp and target time point should not be published.

Related Issues

• Relates [Epic] Rosbag2 playback time control and simulation time #696
• Blocked by Need to wait until player will start to be able to use play_next() #813 (will need the same wait)
• Relates Seek/Jump API for Reader/Storage  #824

Completion Criteria

1. • jump/seek API able to jump forward to an arbitrary time point during active playback.
2. • jump/seek API able to jump forward to an arbitrary time point when player in pause mode.
3. • jump/seek API able to jump backward to an arbitrary time point during active playback.
4. • jump/seek API able to jump backward to an arbitrary time point when player in pause mode.

Implementation Notes / Suggestions

We can use the same mechanism for taking over playback as we do in play_next() API, however updating internal message queue is going to be tricky part.
Also it could be a few nasty race conditions related to the adjustment of the reader position during active playback. Will need to call close-open for reader from separate thread to be able adjust reader position when jumping back in time.

Testing Notes / Suggestions

Perhaps it would be able to write non-flaky tests using MockReader and MockPlayerClock classes.