Regular Update Ver 0.2.2.2: Card Stack

This update is mainly for the Card Bag UI upgrade.
In addition, we've also done the save data migration to make sure no more save data wipes in the future.

The next regular update will likely be the Card Alchemy, where you can combine different cards to create new cards! Make sure to keep some max-level cards in your bag in preparation for it.

Patch Notes:
Version 0.2.2.2

Feature Updates:
- Cards are now displayed in stacks;
- Implemented Card Settings! Configure auto sell and protection count in the settings;
- Library unknown card names now show as "????";
- Only collectible cards are displayed in the Library now;

Content Updates:
- Enhanced iron and energy production on Venus;
- Enhanced Space Folding I slightly;
- Increased max levels of Higher Quality Steel and Heat Resistant Equipments (Total bonus unchanged);
- Increased max level and max bonus of Path Knowledge I;
- Lowered Mercury's recommended departure stats;
- Added 2 new battle cards;
- Preparation for Sun and Mars content;

Performance:
- Greatly reduced save file size;