feat(console): add ability to prevent built-in console commands from loading

[innocenzi]

This PR updates ConsoleApplication::boot and ConsoleConfig to add options to prevent the built-in console commands from being loaded, which is useful in a context where we are building an external CLI application on top of temnpest/console.

The loading prevention is done through DiscoveryLocation, which already had support for detecting if the class came from Tempest directly (by checking the namespace).

The console command discovery uses the new option in ConsoleConfig and this heuristic to determine whether to load a specific command.

This may cause issues if we ever build an external but first-party console application which namespace starts with Tempest, so we might need to update how this work later. However, for now I think it is good enough.

[brendt]

Looks good :)