Complexity plugin support

[MichalLytek]

@MichalLytek I have been playing around with the code base and have been testing two new features that might be nice in typegraphql-prisma.

• Complexity plugin support
• Default value for take (required to properly determine complexity)

Together these can prevent memory overflow high CPU utilization by limiting how complex queries can be which is extremely useful when you have large databases.

Originally posted by @wSedlacek in #1 (comment)

[MichalLytek]

@wSedlacek

How would you want to use the complexity plugin?
In normal TypeGraphQL you manually annotate every field or input/object/args type with the @Complexity decorator.

Do you use some more model-based approach? Like annotate only model field and then use the same value for every field-related things like sort args, etc.?

[Jonasdoubleyou]

For those interested, I've implemented some very rudimentary complexity limitation, which basically enforces take to be present in where queries, and multiplies the cardinality in nested resolvers. Code can be found here. So far this has worked quite well.