New lf rfid (#342)

* invert inputs
* move RFID RX to IRQ, unstable
* remove critical blink
* supress short carrier, decrease queue
* migrate to stream buffer
* enable state change
* conditions build for invert RFID IN
* move get_rfid_in_level
* use hal function for get comp level, remove duplicate interrupt registration, interrupt unregister on exit
* reinit comparator context on mode change

core/api-hal/api-gpio.h

@@ -44,6 +44,9 @@ ValueMutex* gpio_open_mutex(const char* name);
 // get GPIO record and acquire mutex
 GpioPin* gpio_open(const char* name);
 
+// get RFID IN level
+bool get_rfid_in_level();
+
 #ifdef __cplusplus
 }
 #endif