Add support for loading physics engine plugins from static plugin registry #75

Job	Run time
test / matrix-prep-os	3s
test / matrix-prep-bazelversion	8s
test / test (ubuntu-latest, 7.3.1, ., true)	27s
test / test (ubuntu-latest, 8.0.0, ., true)	32s
	1m 10s

Provide feedback