Cleaned up reduce_core.h to use LAUNCH_KERNEL macro.
Added blas_mixed_core.h to the blas_quda depdencies.
Added support for Wilson-fermions in mixed-precision blas core.
Added mixed precision reduction kernel support.
Added support for high-precision partial accumulator in BiCGstab.
Patched BiCGstab for heavy quark residual when high precision partial accumulator is enabled.
Added support for high-precision partial accumulator in CG with heavy quark residual.