Add Support for Renaming Enums

**Is your feature request related to a problem? Please describe.**
Rename/change enum names similar to renaming models https://prisma.typegraphql.com/docs/advanced/renaming-model/

**Describe the solution you'd like**
annotate similar to how models are done `/// @@TypeGraphQL.type(name: "newName")`

**Describe alternatives you've considered**
rebuild the enum with the desired name manually

**Additional context**
we have conflicts from legacy declared enums in our app and newer ones we want to use from prisma enum, but when trying to have them both we run into an error

`Error: Schema must contain uniquely named types but contains multiple types named "FooEnumName".`

Start by reviewing the existing model-renaming behavior referenced in the TypeGraphQL documentation and the generator's Prisma enum emission path. Implement support for the proposed `/// @@TypeGraphQL.type(name: "newName")` annotation and verify that generated enum names can be changed without duplicate GraphQL type-name errors.

Written by the indexing model from the issue text.