Save system upgrade

Once more, an internal system has gotten a complete overhaul! My target of choice this time was the save system!

In the last major update, the save system got completely broken due to my overhauling how card commands are structured. It's completely fixed now and better then ever!

Internally, save files are now being stored as JSON, instead of the custom delimiter nonsense I had been doing before. Practically, that means the following:

• You can now save anywhere, not only in fights (this includes in the map and non-fight events. Saving is still completely disabled for the tutorial though cause I want the tutorial to be structured. Tutorial saving should still be functional though (as in once you complete a tutorial scenario, you should be able to replay it without needing to complete the previous ones first.))
• Enemy predicted movement paths are now also being saved!
• The game now auto-saves every time you return to the map!
• Script execution speed is still not being saved. It's real easy to just, set the bar yourself though, so I'm OK with that for now. 
• Saving works online, but if you refresh the page, the save file will be deleted, so keep that in mind. 

There should be another small update in the next few days where I polish up how the game looks on mobile a bit (yes, I did do custom stuff to make the game look better on mobile!), but next week there won't be any new updates due to some life plans. 

At the moment, the next major feature I'm thinking of tackling is the combat system. I want to set up beating all the enemies to count as beating a level, but that'll require more enemy types, more ways to attack, and possibly even upgrades to how the game grid is generated so I can introduce walls!

That's all for today, have fun and thanks for playing! As always, any and all feedback is super helpful and appreciated!

Bonus secret hotfix: v0.3.2.1: I found three nasty bugs, so I'm hotfixing them in. None of them had anything to do with the save system though! Anyway, fixed the following:

• When you die, you will now restart the game with a deck (you just, hadn't been getting any cards.. yeah.. real bad)
• When you die, money is properly reset to 15 (was 0)
• You can view the tooltip of the same object twice in a row (a bit more obscure this one is, but if you spawned the tooltip for an entity, you wouldn't be able to get it to show up again until you got the tooltip for a different entity to show up)