This patch implement a restful server without any auth.
usage:
```bash
# run easytier-web, which acts as an gateway and registry for all easytier-core
$> easytier-web
# run easytier-core and connect to easytier-web with a token
$> easytier-core --config-server udp://127.0.0.1:22020/fdsafdsa
# use restful api to list session
$> curl -H "Content-Type: application/json" -X GET 127.0.0.1:11211/api/v1/sessions
[{"token":"fdsafdsa","client_url":"udp://127.0.0.1:48915","machine_id":"de3f5b8f-0f2f-d9d0-fb30-a2ac8951d92f"}]%
# use restful api to run a network instance
$> curl -H "Content-Type: application/json" -X POST 127.0.0.1:11211/api/v1/network/de3f5b8f-0f2f-d9d0-fb30-a2ac8951d92f -d '{"config": "listeners = [\"udp://0.0.0.0:12344\"]"}'
# use restful api to get network instance info
$> curl -H "Content-Type: application/json" -X GET 127.0.0.1:11211/api/v1/network/de3f5b8f-0f2f-d9d0-fb30-a2ac8951d92f/65437e50-b286-4098-a624-74429f2cb839
```
* move rpc-build out of easytier dir and make it a independant project
* easytier core use launcher
* fix flags not print on launch
* allow launcher not fetch node info
* abstract out peer rpc impl
* fix arm gui ci. see https://github.com/actions/runner-images/pull/10807
* add easytier-web crate
* fix manual_connector test case
this patch optimize the udp hole punch logic:
1. allow start punch hole before stun test complete.
2. add lock to symmetric punch, avoid conflict between concurrent hole punching task.
3. support punching hole for predictable nat4-nat4.
4. make backoff of retry reasonable
This patch removes Tarpc & Tonic GRPC and implements a customized rpc framework, which can be used by peer rpc and cli interface.
web config server can also use this rpc framework.
moreover, rewrite the public server logic, use ospf route to implement public server based networking. this make public server mesh possible.
the punching task creator doesn't check if the task is already
running, and may create many punching task to same peer node.
this patch also improve hole punching by checking hole punch packet
even if punch rpc is failed.
1. fix ospf route panic if no ipv4 assigned.
2. should refetch global peer latency map every 60s
3. remove regex dep because it's too large and unnecessary.
* correctly set mtu, and allow set mtu manually
* communicate between enc and non-enc should not panic
* allow loading cfg from file
* allow change file log level dynamically
Sijie.Sun