Add service stack license to postgresql tests project.

Author: jeffgabhart

src/ServiceStack.OrmLite.PostgreSQL.Tests/app.config

@@ -5,6 +5,9 @@
   <connectionStrings>
     <add name="testDb" connectionString="Server=127.0.0.1;Port=5432;User Id=testUser;Password=password;Database=testDb;Pooling=true;MinPoolSize=0;MaxPoolSize=200" providerName="Npgsql Data Provider"/>   
   </connectionStrings>
+  <appSettings>
+    <add key="servicestack:license" value="1001-e1JlZjoxMDAxLE5hbWU6VGVzdCBCdXNpbmVzcyxUeXBlOkJ1c2luZXNzLEhhc2g6UHVNTVRPclhvT2ZIbjQ5MG5LZE1mUTd5RUMzQnBucTFEbTE3TDczVEF4QUNMT1FhNXJMOWkzVjFGL2ZkVTE3Q2pDNENqTkQyUktRWmhvUVBhYTBiekJGUUZ3ZE5aZHFDYm9hL3lydGlwUHI5K1JsaTBYbzNsUC85cjVJNHE5QVhldDN6QkE4aTlvdldrdTgyTk1relY2eis2dFFqTThYN2lmc0JveHgycFdjPSxFeHBpcnk6MjAxMy0wMS0wMX0="/>
+  </appSettings>
   <system.data>
     <DbProviderFactories>
       <add name="Npgsql Data Provider" invariant="Npgsql" support="FF" description=".Net Framework Data Provider for Postgresql Server" type="Npgsql.NpgsqlFactory, Npgsql, Version=2.0.11.00, Culture=neutral, PublicKeyToken=5d8b90d52f46fda7"/>