Create index.md

Add PID entry for Generic USB HID Controller

Author: CDiOS

1209/5389/index.md

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+---
+layout: pid
+title: Generic USB HID Controller
+owner: infinite-usb-test
+license: MIT
+site: https://github.com/CDiOS/Infinite_USB_Test
+source: https://github.com/CDiOS/Infinite_USB_Test
+---
+Non-commercial, open-source USB HID controller used solely for evaluating
+USB input integration across a variety of simulation and interactive
+software platforms.