RFC for adding built-in actions

text/0000-built-in-actions.md

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+- Start Date: 2020-06-12
+- RFC PR: 
+- Svelte Issue:
+
+# Built-in Actions
+
+## Summary
+
+This RFC proposes the idea of having a number of common built-in actions much like there
+are built-in transitions.
+
+## Motivation
+
+Actions are currently a bit of a mystery to a lot of people but are incredibly powerful.
+Having a number of ready-made actions would increase the simpleness of getting started
+and adds ease-of-use to beginners of Svelte. 
+
+This is one of those things that blows minds when they first see it, much like the
+transitions. It would greatly ease efforts to market Svelte as *the* framework that
+people should use.
+
+## Detailed design
+
+Much like the `svelte/transition` package a `svelte/action` package could be created.
+You would import them like so: `import { longPress } from 'svelte/action'`.
+In here we would put whatever actions that would make sense to put here. These
+could be actions such as: 
+
+- `use:longpress`
+- `use:clickOutside`
+- `use:lazyload`
+- `use:debugFlash`
+
+Determining what actions should and should not be included needs to be discussed.
+
+## How we teach this
+
+There are no real new concepts added by this RFC but I can see how we would probably want
+to add one or two new Tutorials and Examples. The documentation would need to be expanded
+a bit to also show off these actions, much like how transitions are described there.
+
+## Drawbacks
+
+The first one is documentation. This would probably require the most work in the short-term
+but I think it would be a pretty straight-forward thing once the actual actions that are
+included are decided.
+
+The other downside is that the amount of code to maintain increases. We would have to update
+and keep these actions working but unless the syntax changes radically or the concept of
+actions is going away (😡) I think it might be worth it.
+
+## Alternatives
+
+There are probably not any other alternatives to this, apart from not doing it. 
+
+
+## Unresolved questions
+
+The obvious question here would be to decide what actions should be included. What are some
+popular use-cases that would fit well here?