[CB-2729] write mobile-spec tests to handle basic auth tests for FileTransfer download and upload
[CB-2729] write mobile-spec tests to handle basic auth tests for FileTransfer download and upload

ollie314/cordova-mobile-spec,apache/cordova-mobile-spec,corimf/cordova-mobile-spec,corimf/cordova-mobile-spec,ollie314/cordova-mobile-spec,apache/cordova-mobile-spec,polyvi/xface-mobile-spec,corimf/cordova-mobile-spec,ollie314/cordova-mobile-spec,apache/cordova-mobile-spec,apache/cordova-mobile-spec,ollie314/cordova-mobile-spec,apache/cordova-mobile-spec,lorinbeer/cordova-mobile-spec,ollie314/cordova-mobile-spec,polyvi/xface-mobile-spec,corimf/cordova-mobile-spec,polyvi/xface-mobile-spec,corimf/cordova-mobile-spec