OR-5240 Built-In publisher Future

[crazymanish]

Context

• Ticket: [w13(26march-1april)] Publisher: Built-in publishers #3
• Future is a built-in publisher that emits an output to each subscriber just once, and then finishes.
• Much like Just to create a publisher that emits a single value to a subscriber and then completes, a Future can be used to asynchronously produce a single result and then complete.
• https://www.donnywals.com/using-promises-and-futures-in-combine/
• https://www.vadimbulavin.com/asynchronous-programming-with-future-and-promise-in-swift-with-combine-framework/

In this PR

• Built-In publisher Future
• https://developer.apple.com/documentation/combine/future

Testing steps

• Git checkout this pr git-branch
• Open the project and cmd+u

Demo

[buh]

Basically it uses for network requests.
Also I recommend you get to know the difference between "hot" and "cold" signals.

[crazymanish]

Also I recommend you get to know the difference between "hot" and "cold" signals.

💡 Thank you! will learn 🙇