add Project settings and artifact naming

build.gradle.kts

@@ -0,0 +1,16 @@
+import java.io.ByteArrayOutputStream
+
+allprojects {
+    group = "net.tomatentum.tomatenmusic3"
+    version = "1.0.0-RC1" + (if (!project.hasProperty("release")) ("-" + getGitHash()) else "")
+    description = "A simple Discord Music Bot written in Java with Javacord"
+}
+
+fun getGitHash(): String {
+    val output = ByteArrayOutputStream()
+    project.exec {
+        commandLine("git", "rev-parse", "--short", "HEAD")
+        standardOutput = output
+    }
+    return output.toString().trim()
+}