[FL-1351] Wiegand read fix (#483)

* App accessor: fix external interrupts binding. Hal: removed InterruptTypeExternalInterrupt.
* GPIO hal: add ex and simple init functions to F6 target
* GPIO hal: add dummy alt fn to F6 target
* RFID hal: update gpio hal usage
* F5,F6: synchronize targets, backport VCP fixes, cleanup.

Co-authored-by: あく <alleteam@gmail.com>

applications/accessor/helpers/wiegand.h

@@ -4,6 +4,7 @@ class WIEGAND {
 public:
     WIEGAND();
     void begin();
+    void end();
     bool available();
     unsigned long getCode();
     unsigned long getCodeHigh();