Change displacement and velocity setters to use serac tensors #32

Job	Run time
set_image_vars	1s
check_code (coverage)	2m 53s
build_and_test (Debug, [email protected], seracllnl/tpls:clang-14_08-15-24_21h-49m, -DBUILD_SHAR...	13m 55s
check_code (docs)	2m 46s
build_and_test (Debug, [email protected]_cuda.cmake, seracllnl/tpls:cuda-12_08-15-24_21h-49m, -DBUILD_SH...	16m 36s
check_code (style)	2m 28s
build_and_test (Debug, [email protected], seracllnl/tpls:gcc-13_08-15-24_21h-49m, -DBUILD_SHARED_L...	15m 1s
check_code (header)	2m 49s
build_and_test (Release, [email protected], seracllnl/tpls:clang-14_08-15-24_21h-49m, -DBUILD_SH...	17m 2s
build_and_test (Release, [email protected]_cuda.cmake, seracllnl/tpls:cuda-12_08-15-24_21h-49m, -DBUILD_...	21m 4s
build_and_test (Release, [email protected], seracllnl/tpls:gcc-13_08-15-24_21h-49m, -DBUILD_SHARED...	17m 1s
build_and_test (Debug, [email protected], seracllnl/tpls:clang-14_08-15-24_21h-49m, -DSERAC_ENAB...	24m 14s
	2h 15m 50s

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