Decorators to generate Fields

[MentalGear]

First: Thank you @MichalLytek for all your work, the guide and all the examples! I guess I speak for most, that we are really appreciating your hard work.

Is your feature request related to a problem? Please describe.
I know about the limited TS reflection system, and why Properties and @decorators Fields require redundant type definition. Yet, without a SPOT, there's more room for error.

Describe the solution you'd like
I was wondering if the ts properties could be generated from the @field decorator?
Than we would need to define types only once, e.g.
Instead of:

  @Field((type) => String)
  title!: string

  @Field((type) => String, { name: title, required: true })

Describe alternatives you've considered
TS reflection

[MichalLytek]

Short answer: no 😅

Wait for #296