0.2

Add more polish

• Better configurability
• More robust startup
• Added initial tests
• Improved Ubuntu experience
• Added tmux config

Notable commits

cf2dc39 cookbook: don't generate readme for each simnet, move it to main readme
75002d1 cookbook: run services under host-enforced simnet user
0685121 cookbook: more robust detection of "-1: Chain RPC is inactive" errors
1abccf2 add support for tmux
f623175 introduce tests
55f18d7 sv: add version subcommand
4919d0d introduce SIMVERSE_HOST_BIND and bind to localhost on host by default
9d00ae1 introduce SIMVERSE_EXTRA_SERVICE_CONFIG for greater flexibility

All new work: v0.1...v0.2