Dan Alekseev

This is a draft PR for #12. ## Changes - Added subproject `axum-htmx-derive` - It's `lib.rs` exports 2 methods: `hx_boosted_by` and `hx_boosted_by_async` - Code related to macroses resides in `boosted_by`...

HxBoostedBy macro to avoid redundant if-else for layout

3

Hi! I'd like to propose a macros feature in addition to `HxBoosted` extractor. Currently with axum-htmx we use `HxBoosted` like this: ``` async fn get_index(HxBoosted(boosted): HxBoosted) -> impl IntoResponse {...