[MISC] Coding-naming-copyright convention pass

Source/FixIt/FixIt.Build.cs

.../FixIt/Private/Blueprint/FixItAddSaveToBugAsyncAction.cpp

Source/FixIt/Private/Blueprint/FixItBlueprintLibrary.cpp

...t/Private/Blueprint/FixItCollectPlayerDataAsyncAction.cpp

.../FixIt/Private/Blueprint/FixItCreateNewBugAsyncAction.cpp

.../FixIt/Private/Blueprint/FixItCreateWidgetAsyncAction.cpp

Source/FixIt/Private/Blueprint/FixItLoginAsyncAction.cpp

Source/FixIt/Private/FixIt.cpp

Source/FixIt/Private/FixItPlayerData.cpp

Source/FixIt/Private/FixItSubsystem.cpp

Source/FixIt/Private/UI/FixItWidget.cpp

Source/FixIt/Public/Blueprint/FixItAddSaveToBugAsyncAction.h

Source/FixIt/Public/Blueprint/FixItBlueprintLibrary.h

...ixIt/Public/Blueprint/FixItCollectPlayerDataAsyncAction.h

Source/FixIt/Public/Blueprint/FixItCreateNewBugAsyncAction.h

Source/FixIt/Public/Blueprint/FixItCreateWidgetAsyncAction.h

Source/FixIt/Public/Blueprint/FixItLoginAsyncAction.h

Source/FixIt/Public/FixIt.h

Source/FixIt/Public/FixItPlayerData.h

Source/FixIt/Public/FixItSubsystem.h