Support DBEngine, DBEngineVersion as infrastructure parameters.
**Description:**
Support DBEngine, DBEngineVersion as infrastructure parameters.                                                                                                                                              

**Affected Product Version:**
 0.9.0-m10                                                                                                                       

**OS, DB, other environment details and versions:**
  N/A                                                                                                      
**Steps to reproduce:**
  See above                                                                                                                                     
**Related Issues:**
 N/A                                                                                                      

diff --git a/common/src/main/java/org/wso2/testgrid/common/infrastructure/InfrastructureParameter.java b/common/src/main/java/org/wso2/testgrid/common/infrastructure/InfrastructureParameter.java
index f313bee5..5ce13073 100644
--- a/common/src/main/java/org/wso2/testgrid/common/infrastructure/InfrastructureParameter.java
+++ b/common/src/main/java/org/wso2/testgrid/common/infrastructure/InfrastructureParameter.java
@@ -200,6 +200,7 @@ public class InfrastructureParameter extends AbstractUUIDEntity implements
      */
     public enum Type {
         OPERATING_SYSTEM("operating_system"),
+        DATABASE("database"),
         DBEngine("DBEngine"),
         DBEngineVersion("DBEngineVersion"),
         JDK("JDK");
['common/src/main/java/org/wso2/testgrid/common/infrastructure/InfrastructureParameter.java']