Add option to lock the memory

[carlossvg]

Is your feature request related to a problem? Please describe.

In order to improve the real-time capabilities of this application it would be interesting to lock the process memory in the initalization phase as we do in performance test.

See: https://gitlab.com/ApexAI/performance_test/-/blob/master/performance_test/src/utilities/rt_enabler.hpp#L67-120

Describe the solution you'd like

I would like to be able to lock the memory process so the measurements are impacted by page faults.

[carlossvg]

FYI @flynneva @ralph-lange