Positions queue

[Topvennie]

To further improve the animation (with regards to acceleration) it would be nice to be able to send positions with a new field start_at which indicates when this position should be used.
The frontend would be responsible for smooth transitions between positions.

An possible implementation could look like this:

• Place every new position in a queue
• Remove any existing positions from the queue with a start_at value later than the new one

This approach still allows the backend to send a completely new position without being affect by previously sent positions.