Re-write root and libs to Kotlin DSL

worldedit-libs/sponge/build.gradle.kts

@@ -0,0 +1,11 @@
+applyLibrariesConfiguration()
+
+repositories {
+    maven {
+        name = "Sponge"
+        url = uri("https://repo.spongepowered.org/maven")
+    }
+}
+dependencies {
+    "shade"("net.kyori:text-adapter-spongeapi:${Versions.TEXT_EXTRAS}")
+}