Card flip animation - Nitin

[niftyNitin]

Fixed issue #1

[dev-lovedeep]

do the following changes:

1. hiding the front pattern was temporary till this issue, now after adding the rotation there should be no need of hiding it, as it should go backside.
2. add a 3d rotation effect, search for perspective and backface-visibilty on google to get more idea.

[dev-lovedeep]

no new changes in this commit. Implement the changes mentioned in the previous message.

[niftyNitin]

Please reassign this issue to someone else

[dev-lovedeep]

thanks for contributing