Enable memory_swap and io limits on vim-emu experimentation platforms

[mpeuster]

Check if resource limits are applied correctly! We use a stress service for this.

Run: tng-bench -p examples/peds/ped_calibration_stress.yml -v --hold

	mn.vnf0.vdu01	mp.input	mp.output
cput_t / cpu_set	OK / OK	OK / OK	OK / OK
cput_t / none	OK / OK	OK / OK	OK / OK
none / cpu_set	OK / OK	OK / OK	OK / OK
memory	OK	OK	OK
memory_swap	MISS	MISS	MISS
io	MISS	MISS	MISS
...

TODOs

• io_bw and mem_swap are still missing
• create a real multi config experiment (which tests the complete table) and run it
  • analyse the results (use for paper or at least for next deliverable!)

Old issue fixing the CPU stuff: #59