fix order of setting DbType and Value when creating DbDataParameter

previous order of setting value before type causes "Value does not fall within the expected range"
in oracle, on types like .NET boolean which has no direct corresponding type in the database

Author: yuinlin

src/ServiceStack.OrmLite/OrmLiteReadCommandExtensions.cs

@@ -294,9 +294,9 @@ internal static IDbCommand SetParameters(this IDbCommand dbCmd, IDictionary<stri
                 p.ParameterName = kvp.Key;
 
                 p.Direction = ParameterDirection.Input;
-                p.Value = value ?? DBNull.Value;
                 if (value != null)
                     dialectProvider.InitDbParam(p, value.GetType());
+                p.Value = value ?? DBNull.Value;
 
                 dbCmd.Parameters.Add(p);
             }