[trunk] Formatting changes only
[trunk] Updating debug message for build agents
[trunk] WIP post action support in the new dependency graph generation (disabled currently) and a code tidyup
[trunk] Switched the map of intended node ranks to a map of rank offsets, so that rank indices are no longer absolute during the graph generation
[trunk] Implemented adding post-action modules in the new graph generation algorithm. Uses a method of shifting all higher ranked nodes up by one, and adding a new rank for the post action module