Use Gradle Kotlin DSL

HMCLCore/build.gradle.kts

@@ -0,0 +1,27 @@
+plugins {
+    `java-library`
+}
+
+dependencies {
+    api("com.google.code.gson:gson:2.8.1")
+    api("com.moandjiezana.toml:toml4j:0.7.2")
+    api("org.tukaani:xz:1.8")
+    api("org.hildan.fxgson:fx-gson:3.1.0") {
+        exclude(group = "org.jetbrains", module = "annotations")
+    }
+    api("org.jenkins-ci:constant-pool-scanner:1.2")
+    api("com.github.steveice10:opennbt:1.1")
+    api("com.nqzero:permit-reflect:0.3")
+    api("org.nanohttpd:nanohttpd:2.3.1")
+    api("org.apache.commons:commons-compress:1.21")
+    api("org.apache.commons:commons-lang3:3.12.0")
+    compileOnlyApi("org.jetbrains:annotations:16.0.3")
+}
+
+tasks.processResources {
+    dependsOn(":log4j-patch:jar")
+
+    into("assets/game") {
+        from(project(":log4j-patch").file("build/libs"))
+    }
+}