Multi-module arrangement and the start of AST generation.

settings.gradle.kts

@@ -1 +1,17 @@
 rootProject.name = "pork"
+
+include(
+  ":ast",
+  ":core"
+)
+
+dependencyResolutionManagement {
+  versionCatalogs {
+    create("libs") {
+      version("clikt", "4.2.0")
+
+      library("clikt", "com.github.ajalt.clikt", "clikt")
+        .versionRef("clikt")
+    }
+  }
+}