Add tags to support partial staging and processing
Add tags to support partial staging and processing

Without tags it was impossible to filter resources/log items
in staging procedure. I added them for each node - in form
of node<uid>, including nodemaster.
Also all anchors can be re-staged any time using - tag: base.

Example of use-cases:
solar ch process -t base -a run
solar ch stage -t base -t nodemaster -a run

Mirantis/f2s,Mirantis/f2s