TIMOB-20293 Add getFile method for Android

[benbahrenburg]

Add Titanium.Database.DB.getFile() for Android.

Jira Ticket: https://jira.appcelerator.org/browse/TIMOB-20293

Tested using KitchenSink db

var db = Titanium.Database.install('testdb.db','quotes');
var rows = db.execute('SELECT * FROM TIPS');
var count = rows.getRowCount();
Ti.API.info("count => " + count);
rows.close();

var file = db.getFile();
Ti.API.info("API Name =" + file.apiName);
Ti.API.info("path => " + file.getNativePath());

[hansemannn]

Thanks Ben! I can only see a (very minor) indentation issue. @ashcoding Can you review the method? Thanks guys!

[hansemannn]

Never had that before, but the docs seem to offer a way to set the since property platform-dependent:

    since:
        android: "2.0.0"
        iphone: "6.0.0"
        ipad: "6.0.0"

[benbahrenburg]

Wasn't aware that was available.

[benbahrenburg]

@hansemannn looks like the since syntax recommended isn't supported. Any suggestions on an alternative?

[hansemannn]

Maybe without quotes? Saw it inside the ListView.yml

[benbahrenburg]

@hansemannn @ashcoding everything passed, "since" set to specific version numbers assuming the most recent is 6.0.0.

[ashcoding]

Code reviewed. Functionally tested to be working. Setting to 6.0.0 documentation is fine. Will do changes for that documentation accordingly for you.

[ashcoding]

Accepted

[ashcoding]

Doc update: #7724