chore: Configure Scala build with dependencies and project structure

modules/core/build.gradle.kts

@@ -0,0 +1,44 @@
+plugins {
+    id("scala")
+}
+
+group = "de.nowchess"
+version = "1.0-SNAPSHOT"
+
+@Suppress("UNCHECKED_CAST")
+val versions = rootProject.extra["VERSIONS"] as Map<String, String>
+
+repositories {
+    mavenCentral()
+}
+
+scala {
+    versions["SCALA3"]!!
+}
+
+dependencies {
+
+    implementation("org.scala-lang:scala3-compiler_3") {
+        version {
+            strictly(versions["SCALA3"]!!)
+        }
+    }
+    implementation("org.scala-lang:scala3-library_3") {
+        version {
+            strictly(versions["SCALA3"]!!)
+        }
+    }
+    implementation("org.scala-lang:scala-library") {
+        version {
+            strictly(versions["SCALA_LIBRARY"]!!)
+        }
+    }
+
+    testImplementation(platform("org.junit:junit-bom:5.10.0"))
+    testImplementation("org.junit.jupiter:junit-jupiter")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+}
+
+tasks.test {
+    useJUnitPlatform()
+}

modules/core/src/main/scala/de/nowchess/Test.scala

@@ -0,0 +1,9 @@
+package de.nowchess
+
+object Test {
+
+  def main(args: Array[String]): Unit = {
+    println("Hello World")
+  }
+
+}