This commit FIXES a bug in card catalog which did not allow to switch the view (on hover) on cards with backface that have more than one instance!
The implementation has been simplified, also removing an unused attr!
The corresponding related Preference in settings has been also simplified to two values (being the other not even used anywhere in the game).
Therefore, now in game settings it will be possible to choose between "NEVER" switch card states, and "SWITCH on HOVER".
The default value in Constant has been updated accordingly!
These new methods will be used to cache the values of Image keys, as well as to determine whether a card has an alternate image (and so key).
Methods on CardImageKeys have been distinguished in names to not confuse them with similar names (but completely different use and output) from InventoryItems interface.
CardImageKeys for PaperCard are also cached in private attribute to reduce OPS in Card Catalogs that are consistently the same.
As for Tokens, the output of these two new methods is the same as getImageKey.
These methods have been also moved to interface (and so class) as this would result in better encapsulation (esp. hasBackFace - using CardRules within the card - similar to `Card` class).
ImageUtil.getImageKey calls will be replaced with these methods, limiting their use only to downloaders (when set attribute can be added or not). PaperCard will always add the set info).
Pattern.quote has some corner cases on MAC not working (`ME/` ended up in three splits).
Resorted back to `//` as the key will never be a true file path anyway!
THe content of the setFolder is cached, filtering only images and key prefixes.
Working on prefixes only to get rid of all .full or .fullborder possible variations.
The huge improvement is due to a re-use of a getAllCards(Name, Predicate) method I started implementing into another branch for DeckImporter - re-using this method internally resolves a **lot** of duplicated iterations, and checks, which made the whole method to run even faster than the original legacy implementation!
An extra test method has been added to verify the corner case of querying for a card from editions with a very high (and weird) artIndex (like a land) - making sure that exact card is finally returned!
New method in Interface API to get all cards in a given setCode.
This has changed the implementation of getArtCount avoiding to iterate over all the possible card prints.
This optimisation removes redundant queries when looking for cards by specificed Art Preference.
getCardsFromSet has been worked-around, avoiding querying for potential candidates already in memory.
A preliminary benchmark/tests is implemented too.
