Merge pull request #1643 from The-Lum/PatchBranch

add: Language Descriptor Improvement (adding `action` and `process`)

src/net/sourceforge/plantuml/syntax/LanguageDescriptor.java

@@ -93,6 +93,8 @@ public class LanguageDescriptor {
 		type.add("metaclass");
 		type.add("map");
 		type.add("json");
+		type.add("action");
+		type.add("process");
 
 		keyword.add("@startwire");
 		keyword.add("@startbpm");