Updated tests to include shirley reduced basis w and w/o gpu support.

I think git is confused where some of these files came from.  I
just moved the 'test' directories to 'srb', renamed the input
file appropriately, turned on the srb (use_shirley), and defined
the k-point q-point grids for srb calcs.  Then I copied the srb
directory to srb-gpu and turned on gpu support (use_cuda).