wined3d: Redownload the surface data in case of a palette change. This fixes a lot of redrawing problems in Red Alert.

wined3d: Reload the palette on a color key change. This fixes the ddex4/ddex5 samples from the dx7 sdk.

winex11: Add a critical section for the palette global variables instead of relying on the GDI lock.

comctl32/tests: Call InitCommonControlsEx() if available, fall back to InitCommonControls() for the older controls, and skip the tests altogether for the newer ones.

We can't return WINED3D_OK straight away because we have yet to check
the other flags, like sRGB correction.

Conditional NP2 textures in Direct3D do not support D3DTADDRESS_WRAP
texture addressing. Similarly, GL_ARB_texture_rectangle textures do
not support GL_REPEAT. This patch adds a test which shows that _WRAP
clamps to the texture edge and implements that.

We have to destroy potential fbo renderbuffers, and make sure the
texture is gone