Add initial configuration and data files for Minecraft server setup

- Created settings.yml for VoidGen plugin with update check and metrics options.
- Added bStats config.yml to enable metrics collection for plugin authors.
- Introduced spark config.json for background profiling settings.
- Added about.txt in spark tmp directory to explain temporary data storage.
- Generated server.properties file with default server settings.
- Created spigot.yml for Spigot configuration with detailed settings.
- Added start.bat for launching the server with specified memory allocation.
- Created usercache.json for player UUID and name mapping.
- Added version_history.json to track current server version.
- Included paper-1.21.11.jar for server functionality.
- Created whitelist.json for managing whitelisted players.
- Added advancements and data files for player progress tracking.
- Generated various data files in world directory for chunk, raid, and scoreboard data.
- Created datapacks directory with pack.mcmeta for Bukkit resources.
- Added level.dat and paper-world.yml for world configuration.
- Created playerdata files for player-specific data storage.
- Added region files for world chunk data.
- Created session.lock to manage server session state.
- Added stats files for tracking player statistics.
- Generated uid.dat for unique identifier storage.

plugins/spark/tmp/about.txt

@@ -0,0 +1,10 @@
+# What is this directory?
+
+* In order to perform certain functions, spark sometimes needs to write temporary data to the disk. 
+* Previously, a temporary directory provided by the operating system was used for this purpose. 
+* However, this proved to be unreliable in some circumstances, so spark now stores temporary data here instead!
+
+spark will automatically cleanup the contents of this directory. 
+(but if for some reason it doesn't, if the server is stopped, you can freely delete any files ending in .tmp)
+
+tl;dr: spark uses this folder to store some temporary data.