Merge pull request #421 from SanderA/sanderarens/fix_ceed_cuda_subclasses

Add Ceed_Cuda struct to Ceed_Cuda_ref/shared/gen.

backends/avx: use FMA instructions when supported

make style

CUDA - remove extra variable declaration in cuda/gen

CUDA - cuda/reg recompute blocksize

CUDA - cuda/gen fixes

CUDA - fix readSliceQuadsStrided signature

CUDA - fix writeDofsStrided3d signature

CUDA - use strides as template parameters for cuda/gen

Make style

CUDA - initial impl of strided restrictions in cuda/gen

CUDA - fix indices and strides arguments in cuda/gen

CUDA - update ref/reg restrictions to use CEED_STRIDES_BACKEND {1, nelem*elemsize, elemsize}

magma backend: replace vector alias with explicit backend strides

Restriction - add CEED_STRIDES_BACKEND

CPU - fix CPU backend stridiniding for CEED_BACKENDSTRIDE

magma backend: add optimization for CEED_STRIDES_BACKEND in restriction

Restriction - add CEED_STRIDES_BACKEND

WIP - add strided to cuda gen

CUDA - add strided restrictions

make style changes

add strided restriction for magma backend

LCOV - shift markers to avoid extranious misses

OCCA - initalize imode for clang tidy

Restriction - replace identity restrictions with strided restrictions