Suggestion to add macros LOAD_FILAMENT and UNLOAD_FILAMENT

[lucwuyts]

I'm using the PAD7 on my SV04, and in the Extrude screen, there are 2 button's wich require the macros LOAD_ and UNLOAD_FILAMENT

This is the screen (buttons LOAD and UNLOAD need this macros), the EXTRUDE buttons left and right are working

These are the macros I added to macros.cfg

# load and unload  macro
# printer is already in a paused state when this is called from the klipper - extruder screen on the PAD7
[gcode_macro LOAD_FILAMENT]
gcode:
 M83                   # Put the extruder into relative mode
 G92 E0.0              # Reset the extruder so that it thinks it is at position zero
 G1 E10 F350           # Move the extruder forward 10mm at a speed of 350mm/minute
 G92 E0.0              # Reset the extruder again
 M82                   # Put the extruder back into absolute mode.

[gcode_macro UNLOAD_FILAMENT]
gcode:
 M83                   # Put the extruder into relative mode
 G92 E0.0              # Reset the extruder so that it thinks it is at position zero
 G1 E-10 F350          # Move the extruder back 10mm at a speed of 350mm/minute
 G92 E0.0              # Reset the extruder again
 M82                   # Put the extruder back into absolute mode.