add mounted() as alias to operator bool()

Author: hathach

src/arduino/cdc/Adafruit_USBH_CDC.cpp

@@ -40,7 +40,7 @@ bool Adafruit_USBH_CDC::connected(void) {
   return (_idx != TUSB_INDEX_INVALID) && tuh_cdc_connected(_idx);
 }
 
-Adafruit_USBH_CDC::operator bool() {
+bool Adafruit_USBH_CDC::mounted(void) {
   return (_idx != TUSB_INDEX_INVALID) && tuh_cdc_mounted(_idx);
 }
 

src/arduino/cdc/Adafruit_USBH_CDC.h

@@ -41,7 +41,8 @@ class Adafruit_USBH_CDC : public Stream {
   uint8_t getIndex(void) { return _idx; }
 
   // If cdc is mounted
-  operator bool();
+  bool mounted(void);
+  operator bool() { return mounted(); }
 
   // if cdc's DTR is asserted
   bool connected(void);