Some examples for the Async module.

[JustinWick]

In accordance with #12124, I've added examples to many Async module functions.

As asynchronicity is the entire point of the module, these examples highlight the timing and order of operations when using the provided functions, often with an intentional degree of explicit nondeterminism inside the computations themselves.

Upon review I'm not sure exactly how useful some of these examples will be, but most of them would have helped me when I was learning how to use these functions. I won't be offended if we have to go in a different direction.

If you want to see these in action, I have a quick-and-dirty standalone examples project here that I'm going to leave up for a while:
https://github.com/JustinWick/FSharpExamples

Note: I am not an expert FSharp programmer, so I wouldn't be surprised if there are some small formatting issues here.

[dnfadmin]

All CLA requirements met.

[dsyme]

These are great! I've left a few comments, only a few relatively minor changes are needed, thank you

[KevinRansom]

@JustinWick thank you for creating this contribution, it has been 6 months since any comment or contribution has been made, please reopen if you decide you wish to pursue it.

Kevin

[JustinWick]

@JustinWick thank you for creating this contribution, it has been 6 months since any comment or contribution has been made, please reopen if you decide you wish to pursue it.

Kevin

Apologies all, it's been a hell of a last year, but the insanity is finally over.

I don't know if we still need examples, but I'm happy to make those last few pushes to get the goal lines over if we do.

I don't seem to be able to re-open this.

[dsyme]

@JustinWick I've reopened - yes, I believe we still need the examples :)) Thanks!

[dsyme]

@JustinWick I've updated this to main

[dsyme]

I did some updates, this is ready once green