Gallery2: support GIF animation

This change implements a Java GIF decoder.

Change-Id: I72b6e8eb25572bba77a2a46e1754d8db8c47a0cc
CRs-Fixed: 517575
Gallery2: Support HSCI screencolor settings use

Let it can change HSCI when the picture selected from Gallery2 in screencolor settings.

Change-Id: I57cdb7080820defaa27a2f2e93e479374f00b09a