Save previous work off... don't know what I was up to
Rework project setup

Removes structure files that will no longer be used.  Updates the test setup.
Reimplement various series as commands
Make series generate each defined series
Add -nos options to adjust series driver
Add -F to set field sep
Add -i to print step indexes
Add -L to specify line sep
Add -r to specify output precision
Add -m to stream indefinitely
Add -u to unbuffer output
Merge branch 'reboot'
Add periodic function generator