wined3d: Set D3DPTEXTURECAPS_TRANSPARENCY.
It indicates support of colorkey transparency on textures, so set it because
wined3d supports it. Fixes transparency problems in Forsaken.
diff --git a/dlls/wined3d/directx.c b/dlls/wined3d/directx.c
index bd7f68b..c55d66c 100644
--- a/dlls/wined3d/directx.c
+++ b/dlls/wined3d/directx.c
@@ -3135,6 +3135,7 @@
pCaps->TextureCaps = WINED3DPTEXTURECAPS_ALPHA |
WINED3DPTEXTURECAPS_ALPHAPALETTE |
+ WINED3DPTEXTURECAPS_TRANSPARENCY |
WINED3DPTEXTURECAPS_BORDER |
WINED3DPTEXTURECAPS_MIPMAP |
WINED3DPTEXTURECAPS_PROJECTED |