Add buildID and simplified object access for blackberry tiapp.xml

<blackberry>
        <orientation>auto</orientation>
        <buildID>auto</buildID>
...

Access was done using

 console.log(cli.tiapp.blackberry.orientation['orientation']);

Now done using

console.log(cli.tiapp.blackberry['orientation']);
console.log(cli.tiapp.blackberry['buildID']);