[FL-1818] System setting and debug options. RTC HAL refactoring. (#902)

* FuriHal: RTC API refactoring. System Setting application. FuriCore: adjustable log levels. Minor code cleanup.
* Storage: change logging levels for internal storage.
* FuriCore: fix broken trace logging level

firmware/targets/furi-hal-include/furi-hal.h

@@ -17,6 +17,7 @@ template <unsigned int N> struct STOP_EXTERNING_ME {};
 #include "furi-hal-sd.h"
 #include "furi-hal-i2c.h"
 #include "furi-hal-resources.h"
+#include "furi-hal-rtc.h"
 #include "furi-hal-gpio.h"
 #include "furi-hal-light.h"
 #include "furi-hal-delay.h"