[Admin api] Add a new endpoint to create and start the devnet with a custom config same as node.properties

[satran004]

In Yaci Store e2e tests, we need to start the DevKit with different configurations. Currently, we update the node.properties file and restart the DevKit node. However, this is a manual process.

We currently have the reset admin endpoint, which helps reset the node with the same configuration. This is useful in the test code, where we reset the network before running the tests.

But, we could add another endpoint that starts the node with a new configuration. The configuration data could be sent as part of the POST payload to the API. This would be useful in the yaci-store project to test the code against various node configurations specified in the node.properties file without requiring a yaci-cli restart or manual changes.