FUTABA 16IZ - GYA553 and SCORPION ESC Updates; GYA553 Gyro Holding Power Settings; SCORPION ESC Telemetry Support

V2
1. Add GYA553 Airplane Gyro setting function. (Refer the T16IZ GYA553 Setting Manual)
2. Compatible with SCORPION ESC telemetry
Added support for SCORPION POWER SYSTEM ESC some models.
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2. GYA553 Addition of setting parameters
AIL / ELE / RUD holding power setting has been added to the setting parameters of GYA553.
Adjusted the gyro holding force of the aircraft in AVCS mode.
Decreasing the value weakens the holding power and makes
the operation feeling closer to the Normal mode.