[FL-3226] Deep Sleep Idle (#2569)

* Improve RNG error handling
* Sync RTC shadow registers on Stop mode exit
* Implement working STOP2 mode
* Fix formatting
* FuriHal: disable SWD pins if debug is disabled
* Power: cleanup battery info view, handle zero current report from gauge
* Fbt: add command line argument for extra global defines
* FuriHal: cleanup debug defines in power and os, drop deep_insomnia counter.
* Add a setting to disable deep sleep
* Clean up furi_hal_power
* FuriHal,FapLoader,Debug: implement debug in stop mode, workaround resume in stop
* FuriHal: document OS and power subsystems debugging
* Furi: enable debug interface on crash

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

furi/core/core_defines.h

@@ -24,6 +24,10 @@ extern "C" {
     })
 #endif
 
+#ifndef ABS
+#define ABS(a) ({ (a) < 0 ? -(a) : (a); })
+#endif
+
 #ifndef ROUND_UP_TO
 #define ROUND_UP_TO(a, b)       \
     ({                          \