AP_Scripting: Lua bindings for safety checks ESC, MotorsMatrix, EFI

This commit introduces Lua bindings for the following methods:

- ESC- `get_last_telem_data_ms` 
- MotorMatrix `get_lost_motor` 
- MotorMatrix `get_thrust_boost` 
- EFI `get_last_update_ms` 

Note: 
- For get_last_telem_data_ms - CPN reset is reported. But ESC disconnected with CPN is not reported. This needs to be looked into

libraries/AP_Scripting/generator/description/bindings.desc

@@ -314,6 +314,7 @@ singleton AP_ESC_Telem method get_consumption_mah boolean uint8_t 0 NUM_SERVO_CH
 singleton AP_ESC_Telem method get_usage_seconds boolean uint8_t 0 NUM_SERVO_CHANNELS uint32_t'Null
 singleton AP_ESC_Telem method update_rpm void uint8_t 0 NUM_SERVO_CHANNELS uint16_t'skip_check float'skip_check
 singleton AP_ESC_Telem method set_rpm_scale void uint8_t 0 NUM_SERVO_CHANNELS float'skip_check
+singleton AP_ESC_Telem method get_last_telem_data_ms uint32_t uint8_t 0 NUM_SERVO_CHANNELS
 
 include AP_Param/AP_Param.h
 singleton AP_Param rename param
@@ -393,6 +394,8 @@ singleton AP_MotorsMatrix rename MotorsMatrix
 singleton AP_MotorsMatrix method init boolean uint8_t 0 AP_MOTORS_MAX_NUM_MOTORS
 singleton AP_MotorsMatrix method add_motor_raw void int8_t 0 (AP_MOTORS_MAX_NUM_MOTORS-1) float'skip_check float'skip_check float'skip_check uint8_t 0 AP_MOTORS_MAX_NUM_MOTORS
 singleton AP_MotorsMatrix method set_throttle_factor boolean int8_t 0 (AP_MOTORS_MAX_NUM_MOTORS-1) float 0 FLT_MAX
+singleton AP_MotorsMatrix method get_lost_motor uint8_t
+singleton AP_MotorsMatrix method get_thrust_boost boolean
 
 include AP_Frsky_Telem/AP_Frsky_SPort.h
 singleton AP_Frsky_SPort rename frsky_sport
@@ -572,6 +575,7 @@ ap_object AP_EFI_Backend method handle_scripting boolean EFI_State
 singleton AP_EFI depends (AP_EFI_SCRIPTING_ENABLED == 1)
 singleton AP_EFI rename efi
 singleton AP_EFI method get_backend AP_EFI_Backend uint8_t 0 UINT8_MAX
+singleton AP_EFI method get_last_update_ms uint32_t 
 
 -- ----END EFI Library----