Added more settings for TMC2660...

Added more settings for TMC2660...
            // M911.3 Onnn Qnnn setStallGuardThreshold O=stall_guard_threshold, Q=stall_guard_filter_enabled
            // M911.3 Hnnn Innn Jnnn Knnn Lnnn setCoolStepConfiguration H=lower_SG_threshold, I=SG_hysteresis, J=current_decrement_step_size, K=current_increment_step_size, L=lower_current_limit
            // M911.3 S0 Unnn Vnnn Wnnn Xnnn Ynnn setConstantOffTimeChopper  U=constant_off_time, V=blank_time, W=fast_decay_time_setting, X=sine_wave_offset, Y=use_current_comparator
            // M911.3 S1 Unnn Vnnn Wnnn Xnnn Ynnn setSpreadCycleChopper  U=constant_off_time, V=blank_time, W=hysteresis_start, X=hysteresis_end, Y=hysteresis_decrement
            // M911.3 S2 Zn setRandomOffTime Z1 is on Z0 is off
            // M911.3 S3 Zn setDoubleEdge  Z1 is on Z0 is off
            // M911.3 S4 Zn setStepInterpolation Z1 is on Z0 is off