Switch license to LGPLv3 with static linking exception

Signed-off-by: Semyon Novikov <novikov@fastmail.com>
Even more useful now
Make amitm minimally useful
Add missing cmd dir
Add Rules lookup for config
Untangle config reading from reading file
Wrap LICENSE file at 80th column to make it nice
Add LICENSE file to stop sourcehut complaining
Initial commit

- Add simple structures to handle configuration
- Add example configuration
- Add acme events echo handler