* A more refined rowing session state (PM5)
Introduces a more refined session state needed for the PM5 rower session simulation, as well as a cleaner setup for the metrics to stop when the rower is stopped.
* Added the WorkoutState and rowingState
Added the WorkoutState and rowingState to the PM5 interface, to prevent EXR to start too early.
* Added a link to the brilliant work of Nomath
Added a link to Nomath's work, as it is a brilliant piece of work that independently verifies our calculations and provides a basis for support of the Concept2 rower.
* Bugfix in Instantanous Torque calculation
The Instantanous Torque calculation wasn't cleaned up sufficiently, causing issues in the powercurve.
* unifies reset of heartrate value at different places
* unifies naming with other variables status -> state
* just some minor link adjustments in documentation
Co-authored-by: Lars Berning <151194+laberning@users.noreply.github.com>