A utility package that includes:
1. pyct.cmd: Makes various commands available to other packages. (Currently no
sophisticated plugin system, just a try import/except in the other
packages.) The same commands are available from within python. Can either
add new subcommands to an existing argparse based command if the module has
an existing command, or create the entire command if the module has no
existing command. Currently, there are commands for copying examples and
fetching data.
2. pyct.build: Provides various commands to help package building, primarily
as a convenience for project maintainers.
