Adds a toggle to enable or disable flow compensation based on the
filament width sensor readings without disabling the sensor entirely.
Useful on printers where the hall effect sensor is too inaccurate to
helpfully adjust the extrusion multiplier, but is good enough to act as
a filament runout sensor.
The new setting defaults to true to preserve the existing sensor
behavior.
Existing width sensor G-Code commands are updated to optionally enable
and disable flow compensation and to show the state of the sensor and
command outputs are normalized.
Also includes updates to the relevant doc pages.
Signed-off-by: Ben Lye ben@lye.co.nz
4fba8e4829