Refactoring validation

Refactoring validation from Code to FTL

Change-Id: Ic33a3719a021bb4c82565653fd8d95de38b7929e
Issue-ID: SDC-1334
Signed-off-by: shrikantawachar <shrikant.awachar@amdocs.com>
diff --git a/openecomp-be/tools/install/database/schemaTemplates/composition/image.ftl b/openecomp-be/tools/install/database/schemaTemplates/composition/image.ftl
index 8391390..6d0fb3c 100644
--- a/openecomp-be/tools/install/database/schemaTemplates/composition/image.ftl
+++ b/openecomp-be/tools/install/database/schemaTemplates/composition/image.ftl
@@ -3,7 +3,9 @@
 "type": "object",
 "properties": {
     "fileName": {
-         "type": "string"
+         "type": "string" <#if !manual>,
+            "enum":["${image.fileName}"]
+         </#if>
     },
     "description": {
          "type": "string"