Include db version in export manifest (#5041)

Author: EricWittmann

app/src/main/java/io/apicurio/registry/storage/impl/sql/AbstractSqlRegistryStorage.java

@@ -2141,6 +2141,7 @@ public void exportData(Function<Entity, Void> handler) throws RegistryStorageExc
         manifest.systemName = system.getName();
         manifest.systemDescription = system.getDescription();
         manifest.systemVersion = system.getVersion();
+        manifest.dbVersion = "" + DB_VERSION;
         handler.apply(manifest);
 
         // Export all content

utils/importexport/src/main/java/io/apicurio/registry/utils/impexp/ManifestEntity.java

@@ -13,6 +13,7 @@ public class ManifestEntity extends Entity {
     public String exportVersion = "3.0";
     public Date exportedOn = new Date();
     public String exportedBy;
+    public String dbVersion;
 
     /**
      * @see Entity#getEntityType()