feat: Add ability to inspect build information and features at runtime

Also re-adds ability to inspect used features

src/admin/mod.rs

@@ -3,6 +3,8 @@
 #![allow(clippy::enum_glob_use)]
 #![allow(clippy::too_many_arguments)]
 
+conduwuit_macros::introspect_crate! {}
+
 pub(crate) mod admin;
 pub(crate) mod context;
 pub(crate) mod processor;