feat: observe listen port occupancy

[driftluo]

What problem does this PR solve?

Since the port reuse function of ckb is enabled by default on Linux, starting two ckb nodes will not report an error explicitly, after this PR will automatically exit the second ckb node

Check List

Tests

Manual test:

1. start 2 ckb nodes with the same net port
2. the second one will stop with an error

2021-12-13 17:21:31.585 +08:00 main INFO ckb_bin::helper  raise_fd_limit newly-increased limit: 524288                                 
2021-12-13 17:21:34.235 +08:00 main INFO ckb_bin::subcommand::run  ckb version: 0.102.0-pre (1595009-dirty 2021-12-13)                 
2021-12-13 17:21:34.236 +08:00 main INFO ckb_launcher  Miner is disabled, edit ckb.toml to enable it                                   
IO Error: Os { code: 98, kind: AddrInUse, message: "Address already in use" }                                                          
2021-12-13 17:21:34.236 +08:00 main INFO ckb_stop_handler  StopHandler(GT) send signal

Release note

Title Only: Include only the PR title in the release note.

I don't insist on it

[chanhsu001]

I checked with 2 testcases:
pc with 2 network interface: eth0 and eth1, with different IP address.

1. ckb instance A with ckb.toml, network listen_address=["/ipv4/eth0_ip/tcp/8115"]
   ckb instance B with ckb.toml, network listen_address=["/ipv4/eth1_ip/tcp/8115"]
   both ckb instance start and work, without conflict.

2. ckb instance A with ckb.toml, network listen_address=["/ipv4/eth0_ip/tcp/8115"]
   ckb instance B with ckb.toml, network listen_address=["/ipv4/0.0.0.0/tcp/8115"]
   only one instance could start, the other will report "Address already in use" error and exit

It conform to the design.
Any more running CKB instances will have to binding the explicit different IP address in their ckb.toml , network part.

[driftluo]

bors r=quake,doitian

[bors]

Build succeeded:

• ci_benchmarks_ubuntu
• ci_cargo_deny_ubuntu
• ci_integration_tests_ubuntu
• ci_linters_ubuntu
• ci_quick_checks_ubuntu
• ci_unit_tests_ubuntu
• ci_wasm_build_ubuntu