Remove legacy FileLogger in favor of new DebugLogger (DEV) #2050

...oronawarnapp/test/debugoptions/ui/DebugOptionsFragment.kt

...app/test/debugoptions/ui/DebugOptionsFragmentViewModel.kt

...eviceForTesters/res/layout/fragment_test_debugoptions.xml

...de/rki/coronawarnapp/bugreporting/debuglog/DebugLogger.kt

...n-App/src/main/java/de/rki/coronawarnapp/util/CWADebug.kt

...c/main/java/de/rki/coronawarnapp/util/debug/FileLogger.kt

...in/java/de/rki/coronawarnapp/util/debug/FileLoggerTree.kt

.../main/java/de/rki/coronawarnapp/util/debug/LoggerState.kt

...ki/coronawarnapp/bugreporting/debuglog/DebugLoggerTest.kt

...test/debugoptions/ui/DebugOptionsFragmentViewModelTest.kt