Adds support for monorepo imports

[mguay22]

Closes #63

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[mguay22]

This is merged in nestjs-trpc-v2 fork: https://www.nestjs-trpc-v2.io

[KevinEdry]

This is merged in nestjs-trpc-v2 fork: https://www.nestjs-trpc-v2.io

While this is a good example of the power of oss, I stopped working on this project in part because there is a major flaw in it's design.
I designed it (wrongfully) to work with the nestjs server itself instead of a standalone project. While this works well for small projects, any big company looking to use this in a production environment won't be able to in part because it runs on every change. (i.e it will worsen your repl loop)

The solution is a not an easy one, it's decoupling the generation part to an external CLI and frankly taking a page from Prisma and using Rust to generate the types and files.