Fix #109, Fix #107

[sisby-folk]

• Adds fallback-registered seasonal ice and snow blocks, that replace themselves with vanilla variants via random tick (Fixes Update 2.0 breaks oceans, lakes and rivers LOL BE AWARED OF THIS MATES #109)
• Makes the .minecraft/data directory if it doesn't exist (Fixes Prompts for extras every world load with no config option to disable #107)

Basically just pulled everything from the patched version of extras to make an upgrade-safe version of seasons.

I'll be using this as a custom build for a while, but let me know if anything is out of place.

[lucaargolo]

Hey, thanks for the PR! Unfortunately, I can't just add the old blocks in this mod cause it'll make it needed on the server/client. That's why I implemented it in the extras mod. I could use the fix for #107 tho, so if you can open another PR with just that I would happily merge it.

[sisby-folk]

It's a new feature of 2.0 to be able to install this mod just on the server, right? would it be possible to make one release intended for upgrading old worlds (2.0.2) and then another release with this feature immediately removed? (2.0.3)

[lucaargolo]

That's possible but it would be really confusing for a lot of players. You can always just use the custom release of Fabric Extras in the pinned issue to convert your old worlds.

[sisby-folk]

All good then! We'll continue this as a fork for Tinkerer's Quilt because we specifically need backwards save compatibility, but not adding any items (at the same time). Feel free to close this PR and cherry pick the #107 fix!

[lucaargolo]

If you want, you can release it as a standalone mod (just the compat with old blocks). I'll gladly point out to people who have the same problem, and I bet it would help many players.