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Implement CUDA IProductWRTBase sum-factorization kernels

Jacques Xing requested to merge CFD-Xing/redesign-prototypes:iproduct_sum_fac_cuda_kernels into master

CUDA kernels for IProductWRTBase operation have been implemented for all element types (seg, quad, tri, hex, tet, prism, and pyr). All implementations are based on the SIMD-based matrix-free version.

To avoid multiple copy from CPU to GPU, geometric and basis data are copied to the GPU using the constructor.

Edited by Jacques Xing

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