Handle Accel correctly in D500

[OhadMeir]

Tracked on [RSDEV-2127]

Moved accuracy and scale factor logic from common to device specific. Also cleaned the code from unused template and parameters.

Tried to make motion-transform use cleaner code by using polymorphism instead of parameters and ifs. The first commit is the logic change, afterwards is cleaning the code but keeping the logic.

Opening as draft until the accuracy will be tested in the lab.