[Feature Request] Support dumping and restoring SaveCommon

[AnalogMan151]

Is your feature request related to a problem? Please describe.
Some game save dumps are incomplete without dumping of SaveCommon (example game that has both SaveData and DeviceSaveData is Pokémon Sword and Shield)

Describe the solution you'd like
That Checkpoint search for both FsSaveDataType_SaveData and also FsSaveDataType_DeviceSaveData and dump both.

Describe alternatives you've considered
Extracting CommonSave from NAND with HacDiskTool

Additional context

[AnalogMan151]

As for how I think it should be implemented, since SaveCommon is shared among all profiles, it shouldn't be exported or imported with any one profile (since you may want to dump and restore the SaveCommon independently of the profile save data). I propose that you add a "profile" to the ZL/ZR selection along with the user profiles called SaveCommon. If you want to dump or restore SaveCommon data you use ZL/ZR to select the 'SaveCommon profile' and the UI will filter down the games to show the ones that have DeviceSaveData and allow you to dump and restore it.