Actions can now be named.
Also, fixed error with graph generation (when oneNode and multipleNodes were both non-empty, the nodes were being created incorrectly).
Fixed update of nodeCount in Reduction rules.

The causality graphs are now able to display resources added at different stages.
If after a sequence of reductions, the user adds new resources using the interactive prompt
and starts a new sequence of reductions that use the newly introduced resources, then
these will be displayed in the causality graph.
Added new example demonstrating named actions.
Changed the way actions are shown (it now includes their name).
Added two new examples.