[PACKAGE/BOARD] Add handle usb-hid gadget (#55)

* Add handle usb-hid gadget (Tunr your handheld into usb gamepad for PC)

* Add special keys handling

* add Manual for USB-HID app

* use st terminal to execute script

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Co-authored-by: Apaczer <94932128+Apaczer@users.noreply.github.com>

board/miyoo/main/apps/usb-hid/usb-hid.man.txt

@@ -0,0 +1,21 @@
+Turn your handheld into USB gamepad for PC/Android
+
+Usage:
+- Connect handheld to PC via USB
+- Run this USB HID app
+- Now you should be able to control PC/phone via handheld buttons
+- Press RESET button to leave USB HID mode
+
+Mappings:
+	DPAD mapped to ARROWS
+	B mapped to L_CTRL
+	A mapped to SPACE
+	Y mapped to L_SHIFT
+	X mapped to X
+	SELECT mapped to BACKSPACE
+	START mapped to ENTER
+	L1 mapped to L_ALT
+	R1 mapped to TAB
+	L2 mapped to PG_UP
+	R2 mapped to PG_DOWN
+	RESET not mapped, press to QUIT