added property to identify if model comes from composed schema.

Author: HugoMario

modules/swagger-codegen/src/main/java/io/swagger/codegen/v3/CodegenModel.java

@@ -42,6 +42,7 @@ public class CodegenModel extends CodegenObject {
 
     public Set<String> imports = new TreeSet<String>();
     public boolean emptyVars;
+    public boolean isComposedModel;
     public ExternalDocumentation externalDocumentation;
 
     //The type of the value from additional properties. Used in map like objects.
@@ -471,4 +472,12 @@ public String getAdditionalPropertiesType() {
     public void setAdditionalPropertiesType(String additionalPropertiesType) {
         this.additionalPropertiesType = additionalPropertiesType;
     }
+
+    public boolean getIsComposedModel() {
+        return isComposedModel;
+    }
+
+    public void setIsComposedModel(boolean isComposedModel) {
+        this.isComposedModel = isComposedModel;
+    }
 }