Lot of refactoring, memory and speed optimizations for all the graphs scripts

K-ShakeTune/K-SnT_vibrations.cfg

@@ -153,7 +153,7 @@ gcode:
 
     RESPOND MSG="Machine and motors vibration graph generation..."
     RESPOND MSG="This may take some time (3-5min)"
-    RUN_SHELL_COMMAND CMD=shaketune PARAMS="VIBRATIONS {direction}"
+    RUN_SHELL_COMMAND CMD=shaketune PARAMS="VIBRATIONS {direction} {accel}"
 
     # Restore the previous acceleration values
     SET_VELOCITY_LIMIT ACCEL={old_accel} ACCEL_TO_DECEL={old_accel_to_decel} SQUARE_CORNER_VELOCITY={old_sqv}