Add new CLI commands to manage the runtime configuration

[fraxken]

The goal of this task is to add one (or many ?) commands to manage the runtime configuration (with the @nodesecure/rc package).

For me, the main idea is to make sure the configuration file exist somewhere in a global scope (probably in the os temporary directy ?). And then expose a command like nsecure config to edit the file in an editor like VSCode.

Maybe can we take inspiration on npm config (seems a bit complicated for a first version).

When searching/loading configuration we could search the global area and then the local with process.cwd().

[tony-go]

Really good idea ^^

[Kawacrepe]

I'm gonna look into it