core: Collect vm numa node runtime information

Collect vm numa node runtime pinning to which host numa nodes data.
This information is calculated in vdsm according to each vcpu pinning
to which physical cpu core and the process(vcpu) consumed memory
mapping to which host numa nodes.
The reported message format from vdsm is:
'vNodeRuntimeInfo': {'<vmNodeIndex>': [<hostNodeIndex>], ...}

Change-Id: I9d2c1dd03e0cc2f7d0ed9593e6ff889712894ac7
Bug-Url: https://bugzilla.redhat.com/1100202
Signed-off-by: Bruce Shi <xiao-lei.shi@hp.com>