Added IMAGE 3.3 model native region definition

definitions/region/model_native_regions/image_v3.3.yaml

@@ -0,0 +1,28 @@
+# The model documentation and regional aggregation for IMAGE (TIMER) version 3.2 can be found at https://models.pbl.nl/image/index.php/Region_classification_map
+- IMAGE 3.2:
+  - IMAGE 3.2|WEU
+  - IMAGE 3.2|CEU
+  - IMAGE 3.2|BRA
+  - IMAGE 3.2|CAN 
+  - IMAGE 3.2|CHN 
+  - IMAGE 3.2|EAF 
+  - IMAGE 3.2|INDIA 
+  - IMAGE 3.2|INDO
+  - IMAGE 3.2|JAP
+  - IMAGE 3.2|KOR 
+  - IMAGE 3.2|ME 
+  - IMAGE 3.2|MEX
+  - IMAGE 3.2|NAF 
+  - IMAGE 3.2|OCE
+  - IMAGE 3.2|RCAM
+  - IMAGE 3.2|RSAF
+  - IMAGE 3.2|RSAM
+  - IMAGE 3.2|RSAS
+  - IMAGE 3.2|RUS
+  - IMAGE 3.2|SAF
+  - IMAGE 3.2|SEAS
+  - IMAGE 3.2|STAN
+  - IMAGE 3.2|TUR
+  - IMAGE 3.2|UKR
+  - IMAGE 3.2|USA
+  - IMAGE 3.2|WAF