Implement BEZIER_JERK_CONTROL

Enable 6th-order jerk-controlled motion planning in real-time.
Only for 32bit MCUs. (AVR simply does not have enough processing power for this!)

Marlin/Configuration.h

@@ -608,6 +608,17 @@
 #define DEFAULT_ZJERK                  0.3
 #define DEFAULT_EJERK                  5.0
 
+/**
+ * Realtime Jerk Control
+ *
+ * This option eliminates vibration during printing by fitting a Bézier
+ * curve to move acceleration, producing much smoother direction changes.
+ * Because this is computationally-intensive, a 32-bit MCU is required.
+ *
+ * See https://github.com/synthetos/TinyG/wiki/Jerk-Controlled-Motion-Explained
+ */
+//#define BEZIER_JERK_CONTROL
+
 //===========================================================================
 //============================= Z Probe Options =============================
 //===========================================================================