Add USB Type and valid pin check to periman

Author: me-no-dev

Diff for: cores/esp32/esp32-hal-periman.c

@@ -96,4 +96,6 @@ bool perimanSetBusDeinit(peripheral_bus_type_t type, peripheral_bus_deinit_cb_t
 	return true;
 }
 
-
+bool perimanPinIsValid(uint8_t pin){
+	return !(GPIO_NOT_VALID(pin));
+}

Diff for: cores/esp32/esp32-hal-periman.h

@@ -54,6 +54,9 @@ typedef enum {
 #endif
 #if SOC_TOUCH_SENSOR_SUPPORTED
 	ESP32_BUS_TYPE_TOUCH, 		// IO is used as TOUCH pin
+#endif
+#if SOC_USB_SERIAL_JTAG_SUPPORTED || SOC_USB_OTG_SUPPORTED
+	ESP32_BUS_TYPE_USB, 		// IO is used as USB pin
 #endif
 	ESP32_BUS_TYPE_MAX
 } peripheral_bus_type_t;
@@ -72,6 +75,9 @@ peripheral_bus_type_t perimanGetPinBusType(uint8_t pin);
 // Sets the peripheral destructor callback. Used to destroy bus when pin is assigned another function
 bool perimanSetBusDeinit(peripheral_bus_type_t type, peripheral_bus_deinit_cb_t cb);
 
+// Check if given pin is a valid GPIO number 
+bool perimanPinIsValid(uint8_t pin);
+
 #ifdef __cplusplus
 }
 #endif