Bump clikt to 5.0.3 (#947)

This bumps Clikt from version 3 to version 5, which, among other things, improves
the help text formatting with colors.

Also: 
* Add `--version` flag to pkldoc, pkl-codegen-java, pkl-codegen-kotlin
* Add help text to pkldoc, pkl-codegen-java, pkl-codegen-kotlin

buildSrc/src/main/kotlin/pklAllProjects.gradle.kts

@@ -42,6 +42,15 @@ configurations {
   }
 }
 
+configurations.all {
+  resolutionStrategy.eachDependency {
+    if (requested.group == "org.jetbrains.kotlin") {
+      // prevent transitive deps from bumping Koltin version
+      useVersion(libs.versions.kotlin.get())
+    }
+  }
+}
+
 plugins.withType(JavaPlugin::class).configureEach {
   val java = project.extensions.getByType<JavaPluginExtension>()
   java.sourceCompatibility = JavaVersion.VERSION_17

buildSrc/src/main/kotlin/pklFatJar.gradle.kts

@@ -48,6 +48,9 @@ val relocations =
     // pkl-cli dependencies
     "org.jline." to "org.pkl.thirdparty.jline.",
     "com.github.ajalt.clikt." to "org.pkl.thirdparty.clikt.",
+    "com.github.ajalt.colormath" to "org.pkl.thirdparty.colormath.",
+    "com.github.ajalt.mordant" to "org.pkl.thirdparty.mordant",
+    "com.sun.jna" to "org.pkl.thirdparty.jna",
     "kotlin." to "org.pkl.thirdparty.kotlin.",
     "kotlinx." to "org.pkl.thirdparty.kotlinx.",
     "org.intellij." to "org.pkl.thirdparty.intellij.",