Fixes a potential bug in the BDExchangeMover that doesn't pass the stream to a kernel. Not seen in practice because we use the default stream as well as the fact that we synchronize the stream immediately before calling the kernel in question. Good to fix regardless
Fixes an HREX test that was no longer patching the correct function as of #1334, added assertions to avoid missing again
Removes duplicate equilibration logic in run_sims_hrex to avoid code becoming stale.
Avoids setting the same seed for TIBDExchangeMover in get_context across initial states. Use the integrator seed, which is distinct to each InitialState.
run_sims_hrexto avoid code becoming stale.get_contextacross initial states. Use the integrator seed, which is distinct to each InitialState.