Minecraft new project wizard (#1933 )

* Forge creator almost working

* Store authors and website for next time the user uses the creator

* Don't allow for dialog submission before a latent step is finished

* Fabric mod creator

* Add modid.mixins.json to Forge project creator

* Start with Architectury creator

* Fix long-running tasks that need to run after one another

* Apply website in Forge creator

* Set the correct gradle version in the Forge project creator

* Architectury should be finished but it's not working, not sure why

* Add support for custom build systems via extension points

* Sponge project creator, first maven implementation

* Remove unsupported platforms from the readme

* Add missing platforms to readme

* Replace some silly code with less silly code

* Add Spigot and Paper creators

* Add Velocity creator

* Add BungeeCord and Waterfall creator

* Delete unused code

* ktlint format

* Apply the correct JDK version depending on the platform and version

* Fix license years after merge

* Improvements and fixes to JDK selector UI

* Fix architectury template

* Fix issues with Sponge creator

* Fix IncorrectOperationException in AbstractLatentStep

* Add option to create a git repo (which also creates a gitignore)

* UI improvements

* Add a message encouraging users to report outdated templates

* Add note to project wizard outdated form warning not to request new platforms

* Paper before Spigot

* Remove dependency on TemplateMakerFabric

* Reorganize creators into multiple files and repackage some things

* Improve documentation

* Improve ergonomics for build system properties, main class name, repository, issue tracker

* Limit Sponge API version to 8 and above in dropdown box

* Prevent class name from messing up when the project name contains dots