[jupyter kernel] Feature request: add more magic commands

[GorgiAstro]

It would be nice to have more magic commands in jupyter for managing a SysML project, for instance:

• Not only committing to a SysMLV2 API server, but also pulling from it
• Specifying a custom server URL to the %commit magic, not only using the default intercax.com servers.

[CThuleHansen]

You can add a custom server in the kernel.json file:
{
"argv": [
"java",
"-jar",
"/home/caemh/miniconda3/envs/sysml/share/jupyter/kernels/sysml/jupyter-sysml-kernel-0.38.0-all.jar",
"{connection_file}"
],
"display_name": "SysML",
"env": {
"ISYSML_API_BASE_PATH": "http://localhost:9000"
},
"interrupt_mode": "message",
"language": "sysml"
}

Change the ISYSML_API_BASE_PATH.
But I agree, it could be easier :)