Add Terrans PowerBoxPro V2 Driver

[iTerrans]

Dear INDI developers：

We are the Terrans Industry, and here we apply to have our new product add the driver for Terrans PowerBox Pro V2 to INDI.
This is our first time writing an INDI driver, and we sincerely hope to get your help. Thank you very much.

This is the website of the product's ： https://www.terrans-industry.com/powerboxprov2

Driver name： Terrans PowerBox Pro V2
Version：V 1.0.0

Features: Terrans PowerBoxPro V2 is a comprehensive power and USB data management device used for remote astronomical photography. Equipped with four USB 3.1 ports (backward compatible with USB 2.0), two USB 2.0 ports, six 12VDC output ports, one 3V-12V DC adjustable port, one 19V NUC power supply port, and an external temperature and humidity sensor port. Supports a maximum power output of 180W.

This is the user manual for the product：
PowerBoxPro_V2 User_Manual_English_Beta.pdf

This is the Driver Operate Manual：
INDI Driver Operate Manual.pdf

These are photos of our device：

[iTerrans]

Fix the check errors, please recheck. Thank you.