Building on Forge

[odyslam]

Component

Forge

Describe the feature you would like

We are building tooling for a different use-case, but reusing a lot of Foundry's mental models for a superb DevEx. We are currently forking Forge for the following two reasons and I would really prefer if we didn't:

1. Package Forge: We want to be able to package forge as part of our tooling, but to do that we need a lot of the functionality that lives inside the bin of commands such as forge test/build. Moving them to their own crate would enable us to use them without needing to fork.
2. Extend Cheatcodes: We have added a number of cheatcodes for our use-case. It would be great if we could follow the ext pattern found in projects such as Rreth, so that we can extend the cheatcode syntax without having to fork Foundry.

Maintaining the fork is not terribly hard, as cheatcodes is well organized in such a manner where conflicts are rare. Nonetheless, it would be better if we didn't.

Additional context

No response