[FL-1984, FL-2004, FL-2010] USB CDC Fixes (#801)

* [FL-1984, FL-2004] USB-UART Fixes, test with high timer task priority
* added forgotten file
* switch from EventFlags to ThreadFlags
* [FL-1984, FL-2010] USB-UART and furi-hal-vcp rework
* Scripts: modernize string formatting.

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

firmware/targets/f6/furi-hal/furi-hal-console.h

@@ -7,12 +7,6 @@
 extern "C" {
 #endif
 
-typedef enum {
-    UartIrqEventRXNE,
-    UartIrqEventIDLE,
-    //TODO: more events
-} UartIrqEvent;
-
 void furi_hal_console_init();
 
 void furi_hal_console_enable();