Warewulf API Daemon
wwapid is a grpc service serving the Warewulf API. For v1, the intent is to serve the same interface as wwctl serves. For this preview PR, we are serving much of wwctl node and wwctl container.
Initial security is by mTLS. For development we are generating our own keys. A good tutorial for this is here: https://www.handracs.info/blog/grpcmtlsgo/
The configuration file is wwapid.conf.