rust-hello-world: move to recipes-extended

There is no need to have a single recipe in recipes-example; moving it
to recipes-extended put it with other recipes.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/recipes-example/rust-hello-world/rust-hello-world/0001-enable-LTO.patch b/meta/recipes-extended/rust-example/rust-hello-world/0001-enable-LTO.patch
similarity index 100%
rename from meta/recipes-example/rust-hello-world/rust-hello-world/0001-enable-LTO.patch
rename to meta/recipes-extended/rust-example/rust-hello-world/0001-enable-LTO.patch

diff --git a/meta/recipes-example/rust-hello-world/rust-hello-world_git.bb b/meta/recipes-extended/rust-example/rust-hello-world_git.bb
similarity index 100%
rename from meta/recipes-example/rust-hello-world/rust-hello-world_git.bb
rename to meta/recipes-extended/rust-example/rust-hello-world_git.bb