Undocumented CLI variables in `settings.yaml`

[stronnag]

As of 2020-07-09, the following CLI settings are not documented in settings.yaml.

• [ ] gyro_notch_hz
• [ ] gyro_notch_cutoff
• [ ] gyro_kalman_enabled
• [ ] gyro_kalman_q
• [ ] gyro_kalman_w
• [ ] gyro_kalman_sharpness
• [ ] gyro_to_use
• [ ] acc_notch_hz
• [ ] acc_notch_cutoff
• [ ] opflow_scale
• [ ] pitot_lpf_milli_hz
• [ ] pitot_scale
• [ ] sbus_sync_interval
• [ ] rx_spi_protocol
• [ ] rx_spi_id
• [ ] rx_spi_rf_channel_count
• [ ] motor_poles
• [ ] fpv_mix_degrees
• [ ] nav_mc_vel_xy_ff
• [ ] nav_mc_vel_xy_dterm_lpf_hz
• [ ] mc_iterm_relax_type
• [ ] mc_iterm_relax
• [ ] mc_iterm_relax_cutoff
• [ ] d_boost_factor
• [ ] d_boost_max_at_acceleration
• [ ] d_boost_gyro_delta_lpf_hz
• [ ] inav_w_z_surface_p
• [ ] inav_w_z_surface_v
• [ ] inav_w_xy_flow_p
• [ ] inav_w_xy_flow_v
• [ ] inav_w_xyz_acc_p
• [ ] nav_max_terrain_follow_alt
• [ ] mavlink_ext_status_rate
• [ ] mavlink_rc_chan_rate
• [ ] mavlink_pos_rate
• [ ] mavlink_extra1_rate
• [ ] mavlink_extra2_rate
• [x] eleres_freq
• [x] eleres_telemetry_en
• [x] eleres_telemetry_power
• [x] eleres_loc_en
• [x] eleres_loc_power
• [x] eleres_loc_delay
• [x] eleres_signature
• [ ] osd_artificial_horizon_reverse_roll
• [ ] osd_left_sidebar_scroll
• [ ] osd_right_sidebar_scroll
• [ ] osd_sidebar_scroll_arrows
• [ ] osd_coordinate_digits
• [ ] osd_plus_code_digits
• [ ] stats_total_energy
• [ ] vtx_pit_mode_chan
• [ ] pinio_box1
• [ ] pinio_box2
• [ ] pinio_box3
• [ ] pinio_box4
• [ ] esc_sensor_listen_only
• [ ] antigravity_accelerator
• [ ] ledstrip_visual_beeper

[issue-label-bot[bot]]

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[sensei-hacker]

@marbalon If you're still around, can you take a look at descriptions for the eLeReS settings? You may be the only one who understands them.