Added Hardmode, NewGame+ and fixed minor problems

Hello everyone, today it's a bigger update. Here are the new changes:- Added NewGame+ progression. When you complete the full room, now you have the option to start a NG+, with no limits to the count of NG+ you can do. NG+ unlocks 2 new upgrades (Multiple Focus and XP Gain) and removes the level limit to all upgrades (except cleaning table).- Added a new hardmode option, which you can play the same game where all the cards are grayscale. If you thought the game was too easy, now you can play the hardmode!- Special card cabinets do not get locked after they get completed. However they still cannot be exploited, so don't try to :).- Gather update: Previously, gather only worked with the cards that have never been touched before. This created a problem if you had organized the cards by taking and throwing them into a spesific place. Now, the "Gather Lock" disappears after 60 seconds for each taken card. - Fixed the brightness issue with lighter colored card sets (such as Divine and Solar).- Fixed the lagging problem that appeared when a CardHolder was completed.- Fixed the problem where the thrown cards get instantly teleported into another location if thrown looking down.- Added new options: Invert X / Y, Toggle Headbob.