[Feature Request] Create a package with no dependencies to @prisma/client

[vorillaz]

Is your feature request related to a problem? Please describe.
Hi there, thanks for this amazing generator. We are trying to export the schema validation inside a monorepo. The reason is kind of reusing the schema as validation for forms in the frontend and the backend. When the schema types are generated in a different package inside the monorepo though the @prisma/client is not present. We are trying to use the package as follow:

// ./packages/db/prisma/schema.prisma
generator zod {
  provider                         = "zod-prisma-types"
  output                           = "../../packages/zod/prisma"
  useMultipleFiles                 = true
  writeBarrelFiles                 = true
  createInputTypes                 = false
  addIncludeType                   = false
  addSelectType                    = false
  writeNullishInModelTypes         = false
  createOptionalDefaultValuesTypes = false
  addInputTypeValidation           = false
}

The generated output inside the packages/zod is not aware of the @prisma/client required from the generated output since it's a different package reused by both a client and backend application.

Describe the solution you'd like
Maybe provide our own types somehow through a config file like:

generator zod {
  provider                         = "zod-prisma-types"
  output                           = "./zod"
  // ..
  nullishTypes = "./zod-nullish"
}

Or somehow skip nullish checking through configuration.

Describe alternatives you've considered
A quick and dirty patch is to trick typescript to import @prisma/client as my own types through aliasing.

Once again thanks ton for your amazing work. Keep up.