Fixed the startup Command and changed the default MC (to 1.20.2) and Java Version (to JDK17) that the latest version of Minecraft works without any configuration.
Add option to select custom Forge version with SpongeForge. Also checkes if custom Forge version is compatible with version of SpongeForge. Fixed output with undefined variable
^ Improving installation script.
+ Add Crucible description to Egg.
+ Added support for "staging" versions
+ Adding support for versions lower than v5.4 and higher than v5.0. (lib download)
^ Minor edits to variables.