Merge branch 'PersistantStorage' of git://github.com/geekbozu/InfiniTime into geekbozu-PersistantStorage

# Conflicts:
#	src/systemtask/SystemTask.cpp

src/systemtask/SystemTask.h

@@ -33,6 +33,7 @@
 #include "drivers/Watchdog.h"
 #include "Messages.h"
 
+extern std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds> NoInit_BackUpTime;
 namespace Pinetime {
   namespace Drivers {
     class Cst816S;