* Dart side resize primitives exposed
* Write the codec side changes
* return un-scaled image if we can not allocate bitmap
* Format _instantiateImageCodec calls to be single lined
Move null check for size to be inner
* Address CR comments and make image resize dimensions container
* Round not trunc, also format
* Add tests, remove ImageResizeDims from api surface
* Make placeholder value public
* Make the api side changes
* Add a feature to resize pixels and also add tests
* Fix grammar and add more info