Resolve "Add forward declarations where it is possible in the standalone cli tools"

ReleaseNotes.md

...one_cli_tools/change_storage_class/ChangeStorageClass.cpp

...one_cli_tools/change_storage_class/ChangeStorageClass.hpp

...i_tools/eos_namespace_injection/EosNamespaceInjection.cpp

...i_tools/eos_namespace_injection/EosNamespaceInjection.hpp

...ne/standalone_cli_tools/restore_files/RestoreFilesCmd.cpp

...ne/standalone_cli_tools/restore_files/RestoreFilesCmd.hpp