Update graph-links

refs #6386

Display variable and variableValue or microservicechainlink (whichever
is set) for task type SetUnitVariable, as well as non-0 exit codes from
MicroServiceChainLinks. Nodes that start chains are bordered in dark
gold. WatchedDirectories will match any move, not just moveSIP or
moveTransfer.  Fix what the reject node is to exclude.
Add initial am manpage
Makefile: build, install docs
Makefile: build docs before install
Add WIP FPR rule tool

refs #6770
Print SQL to stdout, everything else to stderr
Fix up IDRule fields
Allow command source code to be specified
Add option to create FPR format
Add ask_for_field helper