prep for semi lagrangian

[aperijake]

• plugin updated and semi-lagrangian to compute internal force for smoothed tet4
• still need to update smoothed derivatives.

[trunk-io]

⏱️ 1h 54m total CI duration on this PR

Slowest 15 Jobs	Cumulative Duration	Recent Runs
Build Release, GPU	34m	🟩
Build Debug, GPU	32m	🟩
Build Debug, Code Coverage	11m	🟩
Build Release	8m	🟩
Build Debug	7m	🟩
Regression Test Debug	4m	🟩
Regression Test Debug, GPU	3m	🟩
Regression Test Release, GPU	3m	🟩
Test Debug, GPU	2m	🟩
Test Debug	2m	🟩
Test Release, GPU	2m	🟩
Setup	2m	🟩
Test Release	1m	🟩
Analyze (javascript-typescript)	1m	🟩
Analyze (python)	1m	🟩

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