add lamassu-install-geth script
add lamassu-install-geth script

joshmh/lamassu-server,naconner/lamassu-server,joshmh/lamassu-server,naconner/lamassu-server,lamassu/lamassu-server,joshmh/lamassu-server,joshmh/lamassu-server,lamassu/lamassu-server,naconner/lamassu-server,lamassu/lamassu-server