Adds the actions:
- core:activate-all-debug-nodes
- core:activate-all-flow-debug-nodes
to match the deactivate* actions.
Also adds:
- core:activate-selected-debug-nodes
- core:deactivate-selected-debug-nodes
Adds a new httpAdmin route - /debug/(enable/disable) - that can be
use to bulk enable/disable nodes via HTTP Post.