Start reorganizing examples (#10)

* Update crate name

* wip

* reduce to just the gpui crate

* Fix misisng example images

* Delete ownership_post.rs

* Update Cargo.toml

* Update README.md

* bump to 0.3.3

* organize

* organize

* Add more learn examples

* Delete _ownership_and_data_flow.rs

* wip learn examples

* Fix colors

* tidy

* Move _template up

* add animation example

* Update examples

* remove legacy examples from toml

* Delete examples.toml

tests/action_macros.rs

@@ -0,0 +1,55 @@
+use gpui::{Action, actions};
+use gpui_macros::register_action;
+use schemars::JsonSchema;
+use serde::Deserialize;
+
+#[test]
+fn test_action_macros() {
+    actions!(
+        test_only,
+        [
+            SomeAction,
+            /// Documented action
+            SomeActionWithDocs,
+        ]
+    );
+
+    #[derive(PartialEq, Clone, Deserialize, JsonSchema, Action)]
+    #[action(namespace = test_only)]
+    #[serde(deny_unknown_fields)]
+    struct AnotherAction;
+
+    #[derive(PartialEq, Clone, gpui::private::serde::Deserialize)]
+    #[serde(deny_unknown_fields)]
+    struct RegisterableAction {}
+
+    register_action!(RegisterableAction);
+
+    impl gpui::Action for RegisterableAction {
+        fn boxed_clone(&self) -> Box<dyn gpui::Action> {
+            unimplemented!()
+        }
+
+        fn partial_eq(&self, _action: &dyn gpui::Action) -> bool {
+            unimplemented!()
+        }
+
+        fn name(&self) -> &'static str {
+            unimplemented!()
+        }
+
+        fn name_for_type() -> &'static str
+        where
+            Self: Sized,
+        {
+            unimplemented!()
+        }
+
+        fn build(_value: serde_json::Value) -> anyhow::Result<Box<dyn gpui::Action>>
+        where
+            Self: Sized,
+        {
+            unimplemented!()
+        }
+    }
+}