Fixed flops count in clover calculation
Fixed memory bug in unitarize_link_test. Began work on integrating
staggered outer product calculation into the HISQ forc interface
routine.
Tweaked the mixed-precision solvers to allow half precision.

Changed the solvers to load the gauge field for each solve.
Previously, the gauge field was only uploaded after the fattening
routine had been called, but heavy-quark HISQ breaks this.
Updated the outer-produce calculation to tune the interior kernel.
This is half-finished. The exterior kernels still need tuning.