Update to use nodeIDs to identify nides.

Signed-off-by: Jayanga Dissanayake <jsdjayanga@yahoo.com>
Adding simple table view for nodes.

Signed-off-by: Jayanga Dissanayake <jsdjayanga@yahoo.com>
Addign more functionality to Node Cache

Signed-off-by: Jayanga Dissanayake <jsdjayanga@yahoo.com>
Adding command functionality, basic implementation.

Signed-off-by: Jayanga Dissanayake <jsdjayanga@yahoo.com>