Templates for `cargo-generate`

[shekhirin]

Describe the feature

We should have cargo-generate templates in the repo. They should include minimal templates to bootstrap the following projects:

• simple – https://github.com/paradigmxyz/reth/blob/0de932d1746b05f695ba3ca8420dac0102227f12/bin/reth/src/main.rs#L23-L29
• exex – https://github.com/paradigmxyz/reth/tree/main/examples/exex/minimal
• rpc – https://github.com/paradigmxyz/reth/tree/main/examples/node-custom-rpc
• payload-builder – https://github.com/paradigmxyz/reth/tree/main/examples/custom-payload-builder

Then, users could do cargo generate paradigmxyz/reth, and choose one of the templates in a selector.

Additional context

No response

[JosepBove]

This would mean we would have to decouple the dependencies on the examples as the template would not be on the same workspace, are we okay with that? If that's negative cargo generate enables Rhai scripting, maybe we could find a workaround but it sounds over-complicated. What's your opinion on this?

[shekhirin]

the template would not be on the same workspace, are we okay with that

yeah, totally

[Mitish98]

I am applying to this issue via OnlyDust platform.