lampod-cli: deamonize application

[vincenzopalazzo]

Now that we have decent log management with #158
we should implement a decent demonize of the main daemon

[vincenzopalazzo]

for now we skip this because I need to understand how to do it a little bit more

You can run in background with the following command

lampod-cli --restore-wallet "prison napkin live tongue small science order lab trim sustain pizza cycle" --log-level trace --log-file ~/.lampo/testnet/log.log 2>&1 &

the 2>&1 & does the trick