Fix PixelData ReleaseFunction type + Remove memoryleak potential

Fix PixelData ReleaseFunction type + Remove memoryleak potential

In dali-wrap.cpp, PixelData's buffer always create by new method.
But the releaseFunction used by input value.

So I fixed the ReleaseFunctoin type ans DELETE_ARRAY.

+

It have potential of memory leak when we got some exceptions during PixelData::New();
So I add every memory release routines inside of catch routine

+

Rename each arguments relative with PixelData

Change-Id: I7cc3b31049e9d3336469b9aeb22d8e889fd2e03b
Signed-off-by: Eunki, Hong <eunkiki.hong@samsung.com>