The Yaegi command line has been changed to provide subcommands.
The following sub-commands are provided:
- extract (formerly goexports)
- help
- run
- test
The previous behaviour is now implemented in run command which
is the default, so the change should be transparent.
In run command, prepare the ability to run a package or a directory
in addition to a file. Not implemented yet
The test command is not implemented yet.
The extract command is meant to generate wrappers to non stdlib
packages.
Fixes#639