GSdx-d3d11: Redo destination format and alpha output.

Dfmt in texture shuffle function already picks the 16 format on slot 2
so it's better to let it call the shader instead of aout.

We can keep old aout code until FbMask emulation is added on d3d11. We
can purge aout along with alpha hack then.
Added fixme note.

GSdx-d3d11: Add support for dfmt shader macro.

tfx.fx: Add support for dfmt to pick the shader for 16bit alpha output.

GSdx-debug: Do some casts and fix warnings.

GSdx-d3d: Add remaining code for RGB channel.

Enable channel shuffle on GT3, GT4, Tourist Trophy and Tekken5.
And with that we reach OpenGL accuracy on this specific feature.

gsdx-d3d11: Copy render target when it matches texture in slot 4

Needed for channel shuffle, this copies the render target when it's
the same as the resource texture bound on slot 4.

gsdx-d3d11: Move shader/sample state set to it's own function

gsdx-d3d11: Add CopyRenderTarget function

gsdx-d3d11: Store shader resource textures on GSDevice11

gsdx-d3d11: Store render target texture in GSDevice11

gsdx-d3d11: Add equality check for GSTexture11

GSdx-d3d11: Add remaining psm.depth code.

Fixes recent regression on Soul Calibur.
It helps isolate psm.depth when it should and shouldn't run even if
sampling isn't supported yet.

Finding Nemo depth issue remains.
People can use the option to disable depth for now on that game.

GSdx-d3d: Remove psm.depth skip on d3d.

I'm seeing better results with this skip not included.
So far DBZBT, God of War, Haunting Ground seem better.
Depth sampling is still not yet added.

Also fixes a regression in GT4 when depth was enabled because the skip
function was misplaced. Other games might've been affected as well.

GSdx: Add crc id for ZettaiZetsumeiToshi2 EU.

SLES-54587 Raw Danger!

GSdx-d3d: Simplify aout for reading.

GSdx: Adjust God of War 1 and 2 crc hacks.

Move texture shuffle (shadows) hack to aggressive state.
Adjust water/hell effect crc hack - don't enable hack on native res if
crc is below aggressive, enable if resolution is higher on dx and gl
state.

GSdx-d3d11: Plug the TOA and Urban Chaos code in to channel shuffle.

On Tales of Abyss it fixes blur,
On Urban Chaos it fixes fog/transparent layer.

Note: Depth needs to be enabled on d3d11.
No support for d3d9 ofc.

GSdx-d3d11: Add support for Tales of Abyss and Urban Chaos shader bit and shader macro.

tfx.tx: Add support for Tales of Abyss and Urban Chaos HLE shader.

Add sample_depth function, note only Tales of Abyss and Urban Chaos
depth sampling is supported, full depth fmt will need to wait a little
longer.

GSdx-d3d: Add fixme note fo rPSSetShaderResource slot 4 channel shuffle.