Add script-templates option to compiler options, fix templates and definitions loading in compiler

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArguments.java

@@ -51,6 +51,10 @@ public class K2JVMCompilerArguments extends CommonCompilerArguments {
     @Argument(value = "script", description = "Evaluate the script file")
     public boolean script;
 
+    @Argument(value = "script-templates", description = "Script definition template classes")
+    @ValueDescription("<comma separated class names>")
+    public String scriptTemplates;
+
     @Argument(value = "kotlin-home", description = "Path to Kotlin compiler home directory, used for runtime libraries discovery")
     @ValueDescription("<path>")
     public String kotlinHome;