Add invoker-commands feature (#2714)

Explainer: https://open-ui.org/components/invokers.explainer/
Co-authored-by: SilentImp <[email protected]>
Co-authored-by: James Stuckey Weber <[email protected]>
Co-authored-by: Patrick Brosset <[email protected]>

Author: 4 people

features/invoker-commands.yml

@@ -0,0 +1,13 @@
+name: Invoker commands
+description: The `command` and `commandfor` attributes for the `<button>` HTML element dispatch an action to an element when the button is invoked (by click or keystroke), as a declarative alternative to `addEventListener()` calls or `onclick` attribute handlers.
+spec: https://html.spec.whatwg.org/multipage/form-elements.html#attr-button-command
+compat_features:
+  - api.CommandEvent
+  - api.CommandEvent.CommandEvent
+  - api.CommandEvent.command
+  - api.CommandEvent.source
+  - api.HTMLElement.command_event
+  - api.HTMLButtonElement.command
+  - api.HTMLButtonElement.commandForElement
+  - html.elements.button.command
+  - html.elements.button.commandfor

features/invoker-commands.yml.dist

@@ -0,0 +1,16 @@
+# Generated from: invoker-commands.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support: {}
+compat_features:
+  - api.CommandEvent
+  - api.CommandEvent.CommandEvent
+  - api.CommandEvent.command
+  - api.CommandEvent.source
+  - api.HTMLButtonElement.command
+  - api.HTMLButtonElement.commandForElement
+  - api.HTMLElement.command_event
+  - html.elements.button.command
+  - html.elements.button.commandfor