Add "exclude" option as a supplement to "include"

[evantrimboli]

I'm submitting a...

[ ] Regression 
[ ] Bug report
[x] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

Currently, a swagger document gives you the option for which modules to include. This is very useful.

Expected behavior

It would be useful to provide the opposite of this, where a set of modules could be excluded.

Minimal reproduction of the problem with instructions

N/A

What is the motivation / use case for changing the behavior?

Let's say I'm developing an API that could be reasonably separated into two parts, client A will only call into section 1, client B will only call into section 2. If I want to generate an API document, I can do something like this:

const section1Modules = [foo, bar, baz];
const opts = {
  include: process.ENV.section1 ? section1Modules : undefined,
  exclude: process.ENV.section2 ? section1Modules: undefined
};

Without this, I would need to maintain two sets of modules, as opposed to just a single one here. Thanks for your consideration.

Environment

Nest version:4.7.16
 
For Tooling issues:
N/A

Others:
N/A

[kamilmysliwiec]

Would you like to create a PR for this issue?

[evantrimboli]

Yeah, I've had a brief look at the code and it seems like it would be relatively simple.

[kamilmysliwiec]

Let's track this here #1289