The idea of this patchset is to split the monolithic state set into 3
parts, vertex processing, fragment processing and other states(depth,
stencil, scissor, ...). The states will be provided in templates which
can be (mostly) independently combined, and are merged into a single
state table at device creation time. This way we retain the advantages
of the single state table and having the advantage of separated
pipeline implementations which can be combined without any manually
written glue code.

The atifs fragment processing implementation doesn't borrow a pixel shader
implementation from anywhere. It was a hack during development, but never needed.

The cursor should only be shown when there is no selection, since this
is how it is done in Windows.  This patch avoids showing the cursor when
there is a selection, and destroys the cursor when a selection is made.

Previously word drag and shift selection was not implemented.  Line
drag selection was working, but shift selection wasn't.