feat: gradle support (#10)

Switching to the ScaffoldIt Gradle Plugin adding:
- HytaleServer.jar via the official Hytale maven
- Monorepo support via `common {}` block
- Kotlin support via `useKotlin()` function
- Hot-reloading using DCEVM JVM and IDEA
- Automatic manifest in-place generation
- Automatic source path scaffolding
- Source-linked Devserver for zero jar
- Source-linked Asset Editor

src/main/resources/manifest.json

@@ -1,20 +1,20 @@
 {
-  "Group": "dev.hytalemodding",
-  "Name": "ExamplePlugin",
-  "Version": "1.0.0",
-  "Description": "Description of your plugin",
-  "Authors": [
-    {
-      "Name": "Your Name",
-      "Email": "your.email@example.com",
-      "Url": "https://your-website.com"
-    }
-  ],
-  "Website": "https://your-plugin-website.com",
-  "ServerVersion": "*",
-  "Dependencies": {},
-  "OptionalDependencies": {},
-  "DisabledByDefault": false,
-  "IncludesAssetPack": false,
-  "Main": "dev.hytalemodding.ExamplePlugin"
-}
+    "Group": "HytaleModding",
+    "Name": "ExamplePlugin",
+    "Version": "0.0.0",
+    "Description": "Description of your plugin",
+    "Authors": [
+        {
+            "Name": "Your Name",
+            "Email": "your.email@example.com",
+            "Url": "https://your-website.com"
+        }
+    ],
+    "Website": "https://your-plugin-website.com",
+    "DisabledByDefault": false,
+    "IncludesAssetPack": false,
+    "Dependencies": {},
+    "OptionalDependencies": {},
+    "ServerVersion": "*",
+    "Main": "dev.hytalemodding.ExamplePlugin"
+}